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Correct Answers: | |

Wrong Answers: | |

Unattempted: |

### Question 1

How many 4 digit numbers are their whose squares end in 2?

### Question 2

One-fifth of the square-root of which number is 0.6?

### Question 3

What is √(38880) × √(9720)?

**A**

19440.

**B**

19840.

**C**

19441.

**D**

19640.

**Soln.**

**Ans: a**

We can see that √(38880) × √(9720) is same as √(2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 5 ) × √(2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 5 ) which equals √(2^{8} × 3^{10} × 5^{2}), which equals (2^{4} × 3^{5} × 5^{1}), which gives 19440.

### Question 4

What is the value of $x$ in $√{0.0196 × x}$ = 1.4?

### Question 5

What is the value of ${√16/5}$ × ${3/√4}$ × ${5/√9}$?

This Blog Post/Article "Square and Cube Roots Quiz Set 012" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Updated on 2019-08-18.

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