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Wrong Answers: | |

Unattempted: |

### Question 1

What is the value of ${√625/2}$ × ${2/√25}$ × ${2/√4}$?

### Question 2

How many 3 digit numbers are their whose squares end in 8?

### Question 3

What is the least number that should be subtracted from 0.0281 to make it a perfect square?

### Question 4

What is the value of ${√1296/6}$ × ${4/√36}$ × ${6/√16}$?

### Question 5

What is the value of ${√17}/2$ − $3/{√17}$?

**A**

${11√17}/34$.

**B**

${21√17}/34$.

**C**

${22√17}/34$.

**D**

${20√17}/34$.

**Soln.**

**Ans: a**

The given expression can be simplified to ${{(√17)^2} - 2 × 3}/{2 × √17}$, which is same as ${17 - 6}/{2 × √17}$, which is same as ${11/{2 × √17}$. Rationalizing, we get ${11/{2 × √17} × {√17/√17}$ which gives ${11√17}/34$

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This Blog Post/Article "Square and Cube Roots Quiz Set 019" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Updated on 2020-02-07. Published on: 2016-04-20