Number Sense Test

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Number Sense Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following options would replace the question mark (?) in the following number statement?

200 tens = ?

A
2 million

B
2 thousand

C
20 thousand

D
2 lakh

Solution

200 tens = 200 × 10 = 2000
2000 = 2 thousand
Question 2
1 / -0

Meena was playing a number game in which she got digits 5, 3, 4, 9 and 7.

Using all these digits once, which of the following will be the largest 5-digit number with 9 at hundreds place?

A
75,943

B
97,543

C
74,953

D
93,753

Solution

The largest 5-digit number that can be formed using the given digits once with 9 at hundreds place will be 75,943.
Question 3
1 / -0

Meena was playing a number game in which she got digits 5, 3, 4, 9 and 7. Using all these digits once, which of the following will be the smallest 5-digit number with 7 at thousands place?

A
33,333

B
37,459

C
34,567

D
37,545

Solution

The smallest 5-digit number that can be formed using the given digits once with 7 at thousands place will be 37,459.
Question 4
1 / -0

Which of the following gives the correct difference between the values of digits 6 and 1 in 62,153?

A
5990

B
59,000

C
59,900

D
60,100

Solution

Value of 6 in 62153 = 60,000
Value of 1 in 62153 = 100
So, the difference = 60,000 - 100 = 59,900
Question 5
1 / -0

Pick the odd one out from the following options.

A
20 tens

B
2 hundreds

C
200 tens

D
200 ones

Solution

20 tens = 20 × 10 = 200
2 hundreds = 2 × 100 = 200
200 tens = 200 × 10 = 2000
200 ones = 200 × 1 = 200
So, 200 tens is the odd one out.
Question 6
1 / -0

Ram saved Rs. 98,642 in one year. What is the expanded form of this amount?

A
90,000 + 8000 + 600 + 40 + 2

B
9000 + 8000 + 600 + 40 + 2

C
90,000 + 80,000 + 6000 + 400 + 20

D
90,000 + 8000 + 60 + 20 + 4

Solution

The expanded form of Rs. 98,642 = 9 × 10,000 + 8 × 1000 + 6 × 100 + 4 × 10 + 2 × 1
= 90,000 + 8000 + 600 + 40 + 2
Question 7
1 / -0

Sohan got Rs. 7815, Ram got Rs. 8715, Gagan got Rs. 7851 and Gaurav got Rs. 8761 as their weekly pocket money.

Arrange these amounts in ascending order.

A
Rs. 8715, Rs. 7851, Rs. 7815, Rs. 8761

B
Rs. 7815, Rs. 7851, Rs. 8715, Rs. 8761

C
Rs. 7851, Rs. 7815, Rs. 8715, Rs. 8761

D
Rs. 7815, Rs. 7851, Rs. 8761, Rs. 8715

Solution

The ascending order means arranging the amounts starting with smallest to greatest.
So, ascending order is:
Rs. 7815, Rs. 7851, Rs. 8715, Rs. 8761
Question 8
1 / -0

Heena has a huge collection of pokemon stickers. She has 97,124 stickers in total.

What is the place value of digit 7 in the given number of stickers?

A
70

B
700

C
70,000

D
7000

Solution

The place value of digit 7 in 97,124 is 7000.
Question 9
1 / -0

Which of the following options would replace the question mark (?) in the following number statement?

10 million = ?

A
10 lakh

B
1 lakh

C
1 crore

D
10 crore

Solution

10 million = 1 crore (1,00,00,000)
Question 10
1 / -0

Ram has Rupees Eighty Eight Thousand Nine Hundred and Sixty Four in his bank account. Which of the following option is same as the given amount?

A
88,964

B
89,864

C
89,064

D
88,906

Solution

Eighty Eight Thousand Nine Hundred and Sixty Four is same as 88,964.
Question 11
1 / -0

What should come in place of ___?

90,909 = 90 thousands + ____ hundreds + 9 ones

A
9

B
90

C
900

D
9000

Solution

Writing 90,909 in expanded form:
9 × 10,000 + 9 × 100 + 9 × 1 = 90 thousands + 9 hundreds + 9 ones
So, there are 9 hundreds in the number.
Question 12
1 / -0

The number on the shirt shows the best estimate of which of following number?

A
11

B
14

C
18

D
25

Solution

18 when rounded up gives 20.

Question 13

1 / -0

Directions: In the following question, a grid is given with five cells (A, B, C, D and E) placed one above the other. Each cell contains a number. Answer the question below based on the grid.

A.	2133
B.	2134
C.	2143
D.	2122
E.	2123

Which of the following statements is correct?

Cell A contains the largest number.

Cell B contains the smallest number.

Cell C contains the largest number.

Cell E contains the smallest number.

Solution

2122 is the smallest number and 2143 is the largest number.
So, option 3 is correct.

Question 14
1 / -0

90 is the answer of which of the following?

A
XC

B
CX

C
XII

D
XIX

Solution

90 = (100 - 10) = XC because X = 10 and C = 100

Question 15

1 / -0

Using the given table, answer the following question.

IX is equal to

Roman Numerals	I	X	V	C	L
Hindu Arabic numbers	1	10	5	100	50

10 - 1

50 - 1

10 - 5

100 - 50

Solution

I = 1 and X = 10
IX = 10 - 1 = 9
So, right answer is (10 - 1).

Question 16

1 / -0

Using the given table, answer the following question:

CC is equal to

Roman Numerals	I	X	V	C	L
Hindu Arabic numbers	1	10	5	100	50

250

200

150

100 Solution

CC = 100 + 100 = 200

Question 17
1 / -0

What is 2,13,456 rounded to the nearest 1000?

A
2,13,000

B
2,14,000

C
21,000

D
2,14,450

Solution

Digit at hundreds place = 4 < 5
So, digit at thousands place will remain the same.
Thus, 2,13,456 rounded to nearest 1000 is 2,13,000.
Question 18
1 / -0

What should be placed in the box in place of the question mark to have the number in order from smallest to largest?

2312 3245 ? 4123

A
3243

B
4023

C
4244

D
4200

Solution

Number at the place of question mark must be greater than 3245 but less than 4123.
4023 is greater than 3245 but less than 4123. So, 4023 is the right answer.
Question 19
1 / -0

Which of the following options depicts the below given expanded form?

60,000 + 900 + 9

A
60,990

B
60,909

C
69,099

D
69,009

Solution

Expanded form of 60,909 = 60,000 + 900 + 9
Thus, 60,909 is the right answer.
Question 20
1 / -0

63,434 is equal to 63,000 when rounded to the nearest ________.

A
ten

B
hundred

C
thousand

D
ten thousand

Solution

Digit at unit place = 4 < 5
Digit at tens place = 3 < 5
Digit at hundreds place = 4 < 5
Since all the digits are at their previous place in the rounded off number, only ones, tens and hundreds place value digits become zeroes.
Thus, the number is rounded to the nearest thousand.
Question 21
1 / -0

Sam has Rs. 86,480 In his bank account. What will be the figure of the bank balance when rounded off to the nearest thousand?

A
85,500

B
86,000

C
87,000

D
87,500

Solution

Digit at hundreds place = 4 < 5
So, this number is rounded.
Therefore, 86,480 when rounded to nearest thousand becomes 86,000.
Question 22
1 / -0

If Ram has Rs. 23,173, Sham has Rs. 23,770, Rahul has Rs. 23,070 and Sam has Rs. 23,171 in their bank accounts, then who has maximum amount in his bank account?

A
Sham

B
Ram

C
Rahul

D
Sam

Solution

If we arrange the amounts in the ascending order, we get: 23,070; 23,171; 23,173; 23,770
So, Sham has maximum amount in his bank account.
Question 23
1 / -0

Mr. Max has estimated the cost to arrange his marriage party as Rupees Eighty Four Thousand and Fifty Five. What is the number in numeral form?

A
84,550

B
8455

C
84,055

D
80,455

Solution

Number written in numeral form is 84,055.
Question 24
1 / -0

Given are the copies of four different newspapers. The number under each newspaper is the total number of copies of the newspaper sold last year.

Which newspaper sold a number of copies that has a 6 in the Thousands place?

A
The Tribune

B
The Times of India

C
The Economic Times

D
The Hindu

Solution

The number given under the newspaper 'The Economics Times', that is, 66,780 has 6 in its Thousands place.

10000s 1000s 100s 10s 1s

6 6 7 8 0

Question 25

1 / -0

Suhail was solving a mathematics question. He calculated that there are One Hundred Thirty-one Thousand Four Hundred minutes in three months. Help him to write this number in numeral form.

1,31,400

1,31,040

1,03,104

1,31,004

Solution

100000	10000s	1000s	100s	10s	1s
1	3	1	4	0	0

According to the above place value chart, the number can be written as 131,400.

Question 26
1 / -0

Which of following statements is correct?

A
Symbol M stands for 100.

B
121 is written as LXXI.

C
The digits V, L and D are not repeated.

D
When a digit of lower value is to be written, l is written after the digit of higher value.

Solution

This statement is correct. Because The digits V, L and D are not repeated. The repetition of V, L and D is invalid in the formation of numbers.
Question 27
1 / -0

Match the following.

A
(i) - (d), (ii) - (a), (iii) - (c), (iv) - (b)

B
(i) - (c), (ii) - (b), (iii) - (d), (iv) - (a)

C
(i) - (b), (ii) - (a), (iii) - (d), (iv) - (c)

D
(i) - (c), (ii) - (a), (iii) - (d), (iv) - (b)

Solution

(i) 1,52,340 - Place value of 3 is 300
(ii) 99,999 - Biggest 5-digit number
(iii) 10,400 - 10,393 when rounded off to nearest 100
(iv) 11,181 - Predecessor of 11,182
Question 28
1 / -0

Ram gives clues shown in the cloud about his mystery number. What is Ram's mystery number?

A
54,439

B
45,439

C
45,349

D
94,354

Solution

10000s 1000s 100s 10s 1s

4 5 4 3 9

Therefore, Ram's mystery number is 45,439.
Question 29
1 / -0

A, B, C and D are six-digit numbers each having the digit 0 only once and in the places shown. None of the other digits is known. Hundred thousands digit of all the numbers is the same.

Which of the following statements is correct about A, B, C and D?

A
D is smaller than A.

B
A is smaller than B.

C
B is the smallest number.

D
D is smaller than C.

Solution

It is given that the hundred thousands digit in all the numbers is the same. This means all the numbers have the same first digit. Now, it is also known that each number contains only one 0. We can see that A, C and D do not have 0 at ten thousands place, which means they have 1 or more at that place. B has 0 at ten thousands place, which indicates that it is the lowest among the given numbers.

Question 30

1 / -0

Directions: In the following question, three sets of Roman numerals are given (A, B and C) with an empty box between them. You are supposed to compare those numbers and fill the correct symbols into the empty boxes. Choose which of the options (a), (b), (c) and (d) gives the correct symbols to be filled into the boxes for each of A, B and C.

	(A)	(B)	(C)
(a)	>	=	<
(b)	>	<	>
(c)	>	<	<
(d)	>	>	=

(a)

(b)

(c)

(d)

Solution

Roman to Decimal conversion is as follows:
LXV = 65
XXI = 21
XIX = 19
DXI = 450
LD = 511
CM = 900

By using above conversions, we can conclude the following:

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Re-Attempt Weekly Quiz Competition

Number Sense Test - 1

Result

Number Sense Test - 1

Score

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Rank

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SHARING IS CARING

Question 1

2 million

2 thousand

20 thousand

2 lakh

Solution

Question 2

75,943

97,543

74,953

93,753

Solution

Question 3

33,333

37,459

34,567

37,545

Solution

Question 4

5990

59,000

59,900

60,100

Solution

Question 5

20 tens

2 hundreds

200 tens

200 ones

Solution

Question 6

90,000 + 8000 + 600 + 40 + 2

9000 + 8000 + 600 + 40 + 2

90,000 + 80,000 + 6000 + 400 + 20

90,000 + 8000 + 60 + 20 + 4

Solution

Question 7

Rs. 8715, Rs. 7851, Rs. 7815, Rs. 8761

Rs. 7815, Rs. 7851, Rs. 8715, Rs. 8761

Rs. 7851, Rs. 7815, Rs. 8715, Rs. 8761

Rs. 7815, Rs. 7851, Rs. 8761, Rs. 8715

Solution

Question 8

70

700

70,000

7000

Solution

Question 9

10 lakh

1 lakh

1 crore

10 crore

Solution

Question 10

88,964

89,864

89,064

88,906

Solution

Question 11

9

90

900

9000

Solution

Question 12

11

14

18

25

Solution