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Wrong Answers: | |
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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 ${√17}/2$ − $3/{√17}$?
${11√17}/34$.
${21√17}/34$.
${22√17}/34$.
${20√17}/34$.
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