Number Sense Test

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Number Sense Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

What is the numeric form of the number given below?

Five hundred three thousand, five hundred six

A
5,356

B
53,506

C
50,566

D
503,506

Solution

Five hundred three thousand, five hundred six = 503,506
Question 2
1 / -0

The sum of the face value of all the digits of 536074 is

A
30

B
27

C
25

D
22

Solution

Face value is the actual value of the digit. For example, in 536074, the face value of 5 is 5.
Sum of the face value of all the digits of 536074 = 5 + 3 + 6 + 0 + 7 + 4 = 25
Question 3
1 / -0

The Roman numeral for the greatest 3-digit number is

A
MCMXCCIX

B
MCMIXCIX

C
CMXCIX

D
MCMMXCIX

Solution

999 = 900 + 90 + 9 = CMXCIX
Question 4
1 / -0

Which of the following options represents 'twenty million twenty thousand and twenty'?

A
2,002,020

B
20,002,020

C
20,020,020

D
20,020,200

Solution

Twenty million twenty thousand twenty = 20,020,020
Question 5
1 / -0

_______ is equivalent to 10 crore in international number system.

A
1 million

B
10 million

C
100 million

D
1000 million

Solution

100 million = 10 crore

Question 6

1 / -0

Select the correct match of Roman and Arabic numerals.

Column I	Column II
A) 4497	I) MMMMCDXCVII
B) 1786	II)MDCCLXXXVI
C) 498	III) DCXIX
D) 619	IV) CDXCVIII

A - III , B-II, C-IV, D - I

A - I , B-II, C-III, D - IV

A - I , B-II, C-IV, D - III

A - II , B- I, C-IV, D - III

Solution

Option 3 is the correct match,

4497 = 4000 + 400 + 90 + 7
MMMMCDXCVII

1786 = 1000 + 700 + 80 + 6
MDCCLXXXVI

498 = 400 + 90 + 8
CDXCVIII

619 = 600 + 10 + 9
DCXIX

Question 7

1 / -0

What does the digit 8 stand for in the number 7,865,234?

80 lakhs

8 thousands

8 hundred thousands

8 ten thousands

Solution

7,865,234 = 8 hundred thousands

According to the place value chart:

million	hundred thousands	ten thousands	thousands	hundreds	tens	ones
7	8	6	5	2	3	4

Question 8
1 / -0

The successor of 99,999,999 is

A
1,000,000

B
10,000,000

C
100,000,000

D
1,000,000,000

Solution

The successor of 99,999,999 + 1 = 100,000,000
Question 9
1 / -0

The Roman numeral for 998 is

A
CMXCVII

B
CMXCCVII

C
CMXCVIII

D
CMXXCVII

Solution

M = 1,000, C = 100, X = 10, V = 5 and I = 1
998 = CMXCVIII
Question 10
1 / -0

What will we get if we add 1 in greatest 6 digit number?

A
100,009

B
999,999

C
1,000,000

D
100,000

Solution

The greatest 6 digit number is 999,999 + 1 = 1,000,000.
Question 11
1 / -0

Thousand lakh =

A
1 million

B
10 million

C
100 crore

D
100 million

Solution

Thousand lakh = 100,000,000, which is equal to 100 million.
Question 12
1 / -0

On the basis of the given abacuses, state which of the following options is true?

A
M = N

B
M > N

C
M < N

D
None of the above

Solution

Abacus M shows the number 1,61,644, and abacus N shows the number 1,51,744.
Therefore, M > N.
Question 13
1 / -0

Which of the given options correctly shows 256454765 according to the International place value chart?

A
2,564,54,765

B
25,64,547,65

C
256,454,765

D
25,64,54,765

Solution

According to the International place value chart, 256,454,765 is correct way of writing the number 256454765.
Question 14
1 / -0

Which option replace the question mark (?) in the series given below?

84,54,95,324 84,54,59,324

A
>

B
<

C
=

D
None of these

Solution

84,54,95,324 > 84,54,59,324
So, option (1) is the answer.
Question 15
1 / -0

Find the smallest 10-digit number from the given options.

A
1,354,564,561

B
1,221,408,621

C
1,121,408,621

D
1,091,498,621

Solution

The smallest 10-digit number is 1,091,498,621
Question 16
1 / -0

Which of the following options is arranged in ascending order?

A
8,75,954; 5,75,964; 6,54,987

B
9,75,954; 8,75,964; 7,54,987

C
5,75,954; 5,75,964; 7,54,987

D
5,75,954; 5,24,964; 7,23,987

Solution

5,75,954 < 5,75,964 < 7,54,987
The given numbers are arranged in ascending order.

Question 17

1 / -0

What is the place value of 8 in 4,58,167?

Ten thousands

Thousands

Hundred thousands

Lakhs

Solution

The place value of 8 in 4,58,167 is thousands.

Lakhs	Ten Thousand	Thousand	Hundred	Tens	Once
4	5	8	1	6	7

Question 18
1 / -0

Which of the following is greatest?

A
6^th multiple of 15

B
2^nd multiple of 35

C
4^th multiple of 75

D
8^th multiple of 42

Solution

(i) 6^thmultiple of 15 = 6 × 15 = 90
(ii) 2^nd multiple of 35 = 2 × 35 = 70
(iii) 4^th multiple of 75 = 4 × 75 = 300
(iv) 8^th multiple of 42 = 8 × 42 = 336
Hence, it is clear that 8th multiple of 42 = 336 is the greatest.
Question 19
1 / -0

The prime number which is a factor of every even number is

A
1

B
2

C
3

D
4

Solution

2 is a prime number and it is a factor of every even number as well.
Question 20
1 / -0

The greatest 7-digit number that can be formed using the digits 6, 8, 7, 9, 4, 1 and 3 (using each digit only once) is

A
8,976,431

B
9,782,431

C
9,874,631

D
9,876,431

Solution

The greatest 7-digit number that can be formed using digits 6, 8, 7, 9, 4, 1 and 3 (using each digit only once) is 9,876,431.
Question 21
1 / -0

Amit recently got married. His is XXIX years old. His wife's age is XXIV years. What is the sum of their age (in Roman numerals)?

A
XLII years

B
LIII years

C
LIV years

D
LVIII years

Solution

Age of Amit = XXIX years = 29 years
Age of Amit's wife = XXIV years = 24 years
Sum of their age = 29 + 24 = 53 years = LIII years.
Question 22
1 / -0

Ravneet was reading about Alexander the Great.He noticed that Alexander the Great was born in CCCLVI B.C. What is this Roman number in Arabic Numerals?

A
396

B
366

C
356

D
316

Solution

D = 500, C = 100, X = 10, V = 5 and I = 1
CCCLVI= 300+ 50 + 6 = 356
So, the Alexander the Great was born in 356 B.C.
Question 23
1 / -0

Neha picked 6 cards out of a deck of cards. She picked the cards numbered 5, 3, 8, 7, 1 and 2. Neha's brother asked her to form the greatest 6-digit odd number with the numbers on her cards. What will be that greatest number?

A
8,53,217

B
8,53,721

C
8,74,312

D
8,75,321

Solution

According to given information, the 6-digit will be odd.
So, the 6^th digit has to be 1 as it is an odd number and the least number as well.
So, the greatest 6-digit odd number is 8,75,321.

Question 24

1 / -0

Rahul sold his house for thirty-three crore two lakh twenty-five thousand nineteen rupees. The selling price of his house in numerals is

Rs. 33,32,25,119

Rs. 33,02,25,919

Rs. 33,02,25,910

Rs. 33,02,25,019

Solution

Thirty-three crore two lakh twenty-five thousand nineteen in numerals is 33,02,25,019.

Ten Crores	Crores	Ten Lakhs	Lakhs	Ten Thousands	Thousands	Hundreds	Tens	Ones
3	3	0	2	2	5	0	1	9

Question 25
1 / -0

There are 4 different companies which make jeans. Company A makes a profit of Rs. 5,41,782 in a year, company B makes a profit of Rs. 6,54,212 in a year, company C makes a profit of Rs. 9,57,845 in a year, and company D makes a profit of Rs. 96,541 in a year. Which company makes the highest profit in a year?

A
Company A

B
Company B

C
Company C

D
Company D

Solution

Among all the given amounts, Rs. 9,57,845 is the highest amount. So, company C makes the highest profit in a year.
Question 26
1 / -0

Rohan has written three different numbers. The first number is the successor of the third number. The third number is the 5^th multiple of the 2^nd number and if the 2^nd number is the 6^th multiple of 568. Find the first number.

A
13409

B
13410

C
17040

D
17041

Solution

6^th multiple of 568 = 3408
So, 2^nd number is 3408
5^th multiple of 2^nd number = 17040
So, 3^rd number is 17040.
As the first number is the successor of the third number
The successor of 17040 is 17041.
Question 27
1 / -0

Which of the following statements is INCORRECT?

A
The place value of the digit '4' in the number 321475 is 400.

B
The place value of the digit '4' in the number 3845681 is the 4000.

C
In the number 9864948, the digit 6 is ten thousands column.

D
The place value of the digit '9' in the number 6548952 is predecessor of 901.

Solution

1. The value of the digit '4' in the number 321475 is 400.
2. The value of the digit '4' in the number 3845681 is 40000 not 4000 (This is incorrect).
3. In the number 9864948, the place value(column) of the digit 6 is ten thousands.
4. The place value of the digit '9' in the number 6548952 is 900 which is a predecessor of 901.
Question 28
1 / -0

Naman has written a 5-digit number in his diary. The number is a multiple of 4. There are three odd digits in the number. The ones digit is the 3^rd multiple of 2. The tens digit is the least prime number, which is also an odd number. The digit at the hundreds place is even. The digit at ten thousands place is neither a multiple of 2 nor 3. The digit at the thousands place is the sum of the digits at the ones and tens places. What number has Naman written in his diary?

A
79432

B
79434

C
79436

D
89436
Solution
- Ones place digit has to be an even number. The 3^rd multiple of 2 is 6.
- The tens digit is the least prime number, which is also an odd number. So, it will be 3.
- The digit at hundreds place is an even number.
- There are three odd digits in the number.
- The first digit (ten thousands column) is neither a multiple of 2 nor 3. That means it is either 5 or 7.
So, option (3) satisfies all the conditions. Hence, 79436 is the required number.

Question 29

1 / -0

Select the INCORRECT match.

(A) 1412	MCDXII
(B) 2145	MMCXLV
(C) 301	CCCI
(D) 599	DCXIX

A

B

C

D

Solution

MCDXII	1000 + 400 + 10 + 2 = 1412
MMCXLV	1000 + 1000 + 100 + 45 = 2145
CCCI	100 + 100 + 100 + 1 = 301
DCXIX	500 + 100 + 10 + 9 = 619 not 599

D does not match with given number.
Hence, the correct answer is 599 = DXCIX

Question 30
1 / -0

There is a 3-digit number. The hundred's place digit is 4 more than number at one's place digit. The hundred's and one's place digits are both multiples of 4. Ten's digit is a third multiple of 3. What is the number?

A
498

B
612

C
591

D
894
Solution
Correct answer is 894 as this satisfies all the conditions.
- Third multiple of 3 is 9.So, there would be 9 at ten's place
- The hundred's and one's place digits are both multiples of 4.
- The hundred's place digit is 4 more than number at one's place digit.

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Number Sense Test - 1

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Number Sense Test - 1

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Question 1

5,356

53,506

50,566

503,506

Solution

Question 2

30

27

25

22

Solution

Question 3

MCMXCCIX

MCMIXCIX

CMXCIX

MCMMXCIX

Solution

Question 4

2,002,020

20,002,020

20,020,020

20,020,200

Solution

Question 5

1 million

10 million

100 million

1000 million

Solution

Question 6

A - III , B-II, C-IV, D - I

A - I , B-II, C-III, D - IV

A - I , B-II, C-IV, D - III

A - II , B- I, C-IV, D - III

Solution

Question 7

80 lakhs

8 thousands

8 hundred thousands

8 ten thousands

Solution

Question 8

1,000,000

10,000,000

100,000,000

1,000,000,000

Solution

Question 9

CMXCVII

CMXCCVII

CMXCVIII

CMXXCVII

Solution

Question 10

100,009

999,999

1,000,000

100,000

Solution

Question 11

1 million

10 million

100 crore

100 million

Solution

Question 12

M = N

M > N

M < N

None of the above

Solution

6^th multiple of 15

2^nd multiple of 35

4^th multiple of 75

8^th multiple of 42