For the following questions answer them individually
An Assertion (A) and Reason (R) are given below.
Assertion (A): We prefer to wear white clothes in winter.
Reason (R): White clothes are good reflectors of heat.
Choose the correct option.
Select the pair in which the numbers are similarly related as in the given pair: 9 : 27 :: ...... : ....
If (x+1/x) = 2, then find the value of $$(x^3 + 1/x^3)$$ $$ \div$$ $$(x^{18} + 1/x^{18})$$
Find the approximate simple interest on Rs.2000 from March 9, 2010 to May 21, 2010 at 8.25% per annum.
The angle of elevation of the top of a tower at a distance of 25 m from its foot is 60°. L The approximate height of the tower is
