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**Square and Square Roots Online MCQs with Answers**

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**Square and Square Roots Online MCQs**

1. Evaluate 1^{3} + 2^{3} + 3^{3} + 4^{3} + 5^{3} = ?Â

225

226

228

246

255

Correct Ans: 225

2. Evaluate : sqrt(1 + sqrt( 1 + sqrt(64))) = ?

65

3

6

2

None of the above

Correct Ans: 2

3. A group of students decided to collect as many paise from each member of group as is the number of members. If the total collection amounts to Rs. 59.29, the number of the member is the group is:

57

67

77

87

97Â

Correct Ans: 77

4. What is the value of sqrt(1.5625) ?

1.26

1.25

1.35

1.45

None of the above

Correct Ans: 1.25

5. Find the least four digit number which is a perfect square.

1025

1225

1144

1024

None of these

Correct Ans: 1024

6. If sqrt(2) = 1.414 then find the value of sqrt(20,000) + sqrt(200) = ?Â

152.76

153.46

155.54

165.56

None of these

Correct Ans: 155.54

7. 1849 students are sitting in an auditorium in such a manner that there are as many students in a row as there columns in the auditorium. Find the number of rows in the auditorium?

37

43

53

47

None of these

Correct Ans: 43

8. The product of two numbers is 120. The sum of their squares is 289. Find the sum of two numbers

23

13

17

19

None of these

Correct Ans: 23

9. Given n = 12, then find the difference between n^{2} and (n+1)^{2}.Â

15

35

24

25

None of these

Correct Ans: 25

10. The number 252 is written as a + b where a and b are consecutive natural numbers. Find the maximum of these two values.

323

311

313

312

None of these

Correct Ans: 312

11. How many natural number lie between the square of the following numbers 12 and 13.

24

23

25

26

None of these

Correct Ans: 24

12. We can express the number 1681 as the sum of first ___?___ odd natural numbers.

842

841

41

51

None of these

Correct Ans: 41

13. Evaluate: 1 + 3+ 5 + 7 + â€¦ + 49

625

729

2500

2401

None of these

Correct Ans: 625

14. What will be the unit’s digit in the number N^2, if N = 1 + 2 + .. + 35

1

4

5

0

None of these

Correct Ans: 0