Knowing Our Numbers Test

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Knowing Our Numbers Test - 6

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Weekly Quiz Competition

Question 1
1 / -0

A football tournament had 3 matches on Monday, Tuesday and Wednesday. The number of spectators on Monday was 56,958 and the number of spectators on Tuesday was 26,542. On Wednesday, the number of spectators was 67,890. How many spectators were present in total in all the matches?

A
1,51,390

B
1,50,356

C
1,49,562

D
1,48,756

Solution

From the question it is clear that we have to add the number of spectators for all the three days to find the total number.

So, 56,958 + 26,542 + 67,890 = 1,51,390
Question 2
1 / -0

Rahul deposited Rs. 26,789 in a bank on Monday and double of it on Tuesday. How much money did he withdraw on Wednesday so that there were 40,000 rupees remaining in his bank account?

A
Rs. 42,369

B
Rs. 41,577

C
Rs. 41,367

D
Rs. 40,367

Solution

Money deposited on Monday = Rs. 26,789
Money deposited on Tuesday =2 x 26789 = Rs. 53,578

Total amount of money in the account = 26,789 + 53,578 = Rs. 80,367

So,

Total amount - Amount remaining = Amount that Rahul withdrew
80,367- 40,000 = Rs. 40,367
Question 3
1 / -0

Sameer goes to his office daily. He walks 1 km 234 m to reach the bus stand and then travels by bus for 20 minutes. The distance travelled by bus is 8 km 34 m. How much distance does he travel in total, if he goes to his office and comes back for 5 days in a week?

A
91 km 380 m

B
92 km 680 m

C
92 km 480 m

D
93 km 580 m

Solution

Total distance travelled by Sameer in a day = 1 km 234 + 8 km 34 m = 9 km 268 m
Since he also comes back the same distance;

Total distance travelled from home to office and back home = 18 km 536 m

We have to multiply this distance by 5 to find the total distance travelled in a week.

i.e. 18 × 5 + 536 × 5 = 90 km + 2,680 m = 92 km 680 m
Question 4
1 / -0

A factory manufactures 850 cycle hubs on one machine in a day. If there are 24 machines running in the factory, then how many cycle hubs will the factory manufacture in the month of July, given there is no holiday on Sundays?

A
6,12,400

B
6,22,400

C
6,32,400

D
6,52,400

Solution

From the given information, number of cycle hubs made by 24 machines in a day = 850 x 24 = 20,400

Now, there are 31 days in July and as all Sundays are working.

So, total number of pieces manufactured = 20,400 × 31 = 6,32,400
Question 5
1 / -0

Venkatesh was working on a two-step problem of Mathematics. He had to work out a calculation of 231 x 26 + 34. Instead of that, he calculated as 231 x 34 + 26. What is the difference in the answers that he calculated?

A
1,840

B
1,860

C
1,880

D
1,990

Solution

Working out both the calculations, we get
231 x 26 + 34 = 6,040

Similarly, for the second calculation, we have
231 x 34 + 26 = 7,880

So, difference between these two answers = 7,880 - 6,040 = 1,840
Question 6
1 / -0

Fill in the blanks:

1. The number 6,57,345 rounded to the nearest ten thousand is ___P___.
2. The estimated sum of 4,999 and 759 is ___Q___.
3. The Roman numeral for the number 356 is ___R___.

P Q R

A 6,60,000 5,760 CCCLVI

B 6,57,000 5,860 CCCLIV

C 6,60,000 5,760 CCCLXI

D 6,60,000 6,100 CCCLIX

A
A

B
B

C
C

D
D

Solution

The number 65,7345 rounded to the nearest ten thousand is 6,60,000. (As the digit at the thousands place is 7, which is greater than 5, we round it up.)
An estimated sum can be found out as:

5000 + 760 = 5,760

The Roman numeral for the number 356 is CCCLVI.
Question 7
1 / -0

The sum of the place values of 5 in the greatest and the smallest 4-digit numbers formed by using the digits 3, 7, 5 and 9 (each digit to be used only once) is

A
550

B
500

C
450

D
400

Solution

The greatest 4-digit number formed by using the given digits is 9,753.
Place value of 5 = 50

The smallest 4-digit number formed by using the same digits is 3,579.

Place value of 5 = 500

So, sum = 500 + 50 = 550
Question 8
1 / -0

State 'T' for true and 'F' for false.

I. The greatest 3-digit number can be written as CMXCIX.
II. 1 million = 10 lakh
III. The number 76,830 rounded to the nearest thousand is 77,800.
IV. The place value of 8 in 45,86,329 is ten thousand.

I II III IV

A T F F T

B F F F T

C F T F F

D T T F F

A
A

B
B

C
C

D
D

Solution

I. The greatest 3-digit number is 999 and it can be written as CMXCIX. (True)
II. 1 million = 10 lakh (True)
III. The number 76,830 rounded to the nearest thousand is 77,000, and not 77,800. (False)
IV. The place value of 8 in 45,86,329 is eighty thousand, and not ten thousand. (False)
Question 9
1 / -0

If a new number is formed by interchanging the digits at the ten thousands place and the tens place of the number 54,673, then what is the relation between the new number and the original number?

A
The new number is smaller than the original number.

B
The new number is equal to the original number.

C
The new number is greater than the original number.

D
Cannot be determined

Solution

The given number is 54,673.

After interchanging the ten thousands digit, i.e. 5, and the tens digit, i.e. 7, of the number, we get 74,653.

74,653 > 54,673
Question 10
1 / -0

Match the columns:

Column 1 Column 2

I. 245 P. CCXXVI

II. 226 Q. CXLV

III. 145 R. CCXLV

IV. 36 S. XXXVI

A
I - (R), II - (P), III - (Q), IV - (S)

B
I - (R), II - (Q), III - (P), IV - (S)

C
I - (S), II - (P), III - (Q), IV - (R)

D
I - (P), II - (R), III - (Q), IV - (S)

Solution

I - (R), II - (P), III - (Q), IV - (S) is the correct answer.

Column 1 Column 2

245 CCXLV

226 CCXXVI

145 CXLV

36 XXXVI

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Re-Attempt Weekly Quiz Competition

	P	Q	R
A	6,60,000	5,760	CCCLVI
B	6,57,000	5,860	CCCLIV
C	6,60,000	5,760	CCCLXI
D	6,60,000	6,100	CCCLIX

Column 1	Column 2
I. 245	P. CCXXVI
II. 226	Q. CXLV
III. 145	R. CCXLV
IV. 36	S. XXXVI

	I	II	III	IV
A	T	F	F	T
B	F	F	F	T
C	F	T	F	F
D	T	T	F	F

Knowing Our Numbers Test - 6

Result

Knowing Our Numbers Test - 6

Score

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Rank

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SHARING IS CARING

Question 1

1,51,390

1,50,356

1,49,562

1,48,756

Solution

Question 2

Rs. 42,369

Rs. 41,577

Rs. 41,367

Rs. 40,367

Solution

Question 3

91 km 380 m

92 km 680 m

92 km 480 m

93 km 580 m

Solution

Question 4

6,12,400

6,22,400

6,32,400

6,52,400

Solution

Question 5

1,840

1,860

1,880

1,990

Solution

Question 6

A

B

C

D

Solution

Question 7

550

500

450

400

Solution

Question 8

A

B

C

D

Solution

Question 9

The new number is smaller than the original number.

The new number is equal to the original number.

The new number is greater than the original number.

Cannot be determined

Solution

Question 10

I - (R), II - (P), III - (Q), IV - (S)

I - (R), II - (Q), III - (P), IV - (S)

I - (S), II - (P), III - (Q), IV - (R)

I - (P), II - (R), III - (Q), IV - (S)

Solution

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