Question

Question 24

Write the correct answer from the given four options.

Given that, $\sqrt{4096}=64$, the value of $\sqrt{4096}+\sqrt{40.96}$ is

a) 74
b) 60.4
c) 64.4
d) 70.4

Answer 1

Given, $\sqrt{4096}=64$
So, $\sqrt{4096}+\sqrt{40.96}$
$=64+\sqrt{4096\times {10}^{-2}}=64+\sqrt{4096}\sqrt{{10}^{-2}}=64+64\times {10}^{-1}=64+6.4=70.4$