Square Roots and Cube Roots mcqs test 01

1. Find the smallest number that must be added to 1780 to make it a perfect square:

2. Find the least square number which is exactly divisible by 10, 12, 15 and 18:

3. What is the square root of 0.0009?

4. /“`50 x /“`98 is equal to:

5. What is the smallest number by which 3600 be divided to make it a perfect cube?

6. Find the value of       /““1–9/16 ?

7. What is the smallest number to be subtracted from 549162 in order to make it a perfect square:

8. A man plants 15376 apple trees in his garden and arranges them so that there are as many rows as there are apples trees in each in each row. The number of rows is:

9. The greatest four digit perfect square number is:

10. Find the cube root of 2744:

11. The smallest number added to 680621 to make the sum a perfect square is:

12. The square root of 64009 is:

13. The least number by which 1470 must be divided to get a number which is a perfect square is:

14. What is the square root of 0.16?

15. The digit in the units place in the square root of 15876 is:

16. Find the greatest number of five digits which is a perfect square?

17. Which one t the following numbers has rational square root?

18. Evaluate /6084 by factorization method?

19. The least number by which 294 must be multiplied to make it perfect square, is:

20. Find the smallest number by which 5808 should be multiplied so that the product becomes à perfect Square:

21. The square root of (272- 128 ) is:

22. Find the value of /““0.289/0.00121

23. Find the square root of 1471369:

24. The cube root of .000216 is:

25. The least perfect square number divisible by 3, 4, 5, 6 and 8 is:

26. The largest four digit number which is a perfect cube is:

27. The least number of 4 digit which is perfect square, is:

28. The least perfect square, which is divisible by each of 21, 36 and 66 is:

29. By what least number 675 be multiplied to obtain a number which is a perfect cube?

30. By what least number 4320 be multiplied to obtain a number which is a perfect cube?