If $$ x=\sqrt{(1.96)}-\sqrt{(0.04)}$$ then the value of x is

If 1.5 a=0.04 b then $$ {b-a\over b+a}$$.

The product of two whole numbers is 37. The square root of the difference of the numbers is

If a² + a + 1 = 0 then the value of a⁹ is. 

Direction: what should come in place at question mark(?).

45% of 224×?% of 120=8104.32

Simplify the following equation
$$ {\sqrt{(1-sin^{2}θ) ÷{(1-cos^{2}θ)}}}$$

In a garden of 42 trees, 3/7 of them are Neem trees and the rest are Mango trees. Find the number of Mango trees.

If the sum and difference of two number are 20 and 8 respectively, then the difference of their squares is: