Download CBSE Sample Paper 2024-25 for class 12th to 8th

Mix Test - 6

Result

Mix Test - 6

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Weekly Quiz Competition

Question 1
1 / -0.25

A
8⁴

B
2⁶

C
2⁹

D
2⁵

Solution
Question 2
1 / -0.25

The sum of first four Prime numbers is

A
16

B
17

C
10

D
11

Solution

(2 + 3 + 5 + 7) = 17
Question 3
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In school, there were 73 holidays in one year. What is the ratio of the number of holidays to the number of days in one year?

A
It is 1 : 4

B
It is 4 : 1

C
It is 1:5

D
It is 5 : 1

Solution

ratio = no of holidays : no of days in a year
= 73 : 365
= 1 : 5
Question 4
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Two quantities can be compared only if they are in the same ________.

A
quantity

B
ratios

C
units

D
proportions

Solution

For e.g 5cm:20mm
units are different
1cm = 10mm
5cm= 50mm
50:20 = 5:2
Question 5
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The number which when added to itself 10 times gives 264. The number is:

A
22

B
24

C
26

D
20

Solution

Let the number of x
Then x + 10x = 264
or 11x = 264
∴ x = 264/11 = 24
Question 6
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Find the smallest square number that is divisible by each of the numbers 4, 9 and 10.

A
360

B
900

C
800

D
None of these

Solution

For finding the smallest square number divisible by 4, 9 and 10 we find the L.C.M of 4, 9, and 10 which is = 180. But 180 is not a square number.
So to find the square number let us see the prime factors of 180 = 3 × 3 × 2 × 2 × 5. Here one 5 does not have a square pair so, if we multiply one 5 the number becomes 180 × 5 = 900 which is a square number. 900 is the required number.
Question 7
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The first Prime number is

A
0

B
3

C
1

D
2

Solution

The first prime number is 2.
Question 8
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The sum of 1/2,1/4 and 1/8, of a number is 28. The number is:

A
42

B
28

C
36

D
32

Solution
Question 9
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Without doing any calculation, find the numbers which are surely perfect squares:

A
2673

B
2688

C
2025

D
2657

Solution

2025 is a perfect square as it ends with 5 at the unit's place whereas the other numbers 2657, 2688, and 2673 ends with 7, 8, and 3 at the unit's place and a perfect square never end with 2, 3, 7 and 8 at unit's place.
Question 10
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Find the cube root of 8000.

A
10

B
8

C
2

D
20

Solution

8000 = 2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 5