Question

*pls write all this in a notebook and send me the photo of it.....*
10. The width or size of the class interval 30-40 is:

(A) 10

(B) 30

(C) 40

(D) 70

11. What will be the number of zeros in square of 400?

(A) 2

(B) 3

(C) 4

(D) 6

12. The sum of 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 +19 is:

(A) 121

(B) 120

(C) 100

(D) 110

13. The Pythagorean triples whose smallest number is 8:

(A) 8, 16 17

(B) 8, 17, 18

(C) 8, 15, 17

(D) 8, 15, 16

14. The prime factorisation of 64 is:

(A) 2 x 2 x 2

(B) 4 x 4 x 4

(C) 8 x 8 x 8

(D) None of the above

15. What should be divided by 53240 to make it a perfect cube?

(A) 5

(B) 10

(C) 15

(D) 20

16. Waheeda bought an air cooler for Rs. 3300 including a tax of 10%. The price of the air

cooler before VAT was added is:

(A) Rs. 2000

(B) Rs. 3000

(C) Rs. 2500

(D) Rs. 2800

17. If 50% of students are good at science out of 20 students. Then the number of students

good at science is:

(A) 10

(B) 15

(C) 5

(D) 11

18. The product of 4x and 0 is:

(A) 4x

(B) 4

(C) 0

(D) None of the above​

Answer 1

Answer:

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