Choose the alternative that best replaces the question mark(?) in the given figure.
A 2 m broad pathway is to be constructed around a rectangular plot on the inside. The area of the plot is 96 m². The rate of construction is Rs.50 per m². Find the total cost of the construction.
In a right triangle, the sides are in the ratio 1 : 1 : \(\sqrt{2}\).
Find cos A cos B - sin A sin B.
Simplify: \(\left(0.01+\sqrt{0.0225}\right)\)
The Simple Interest after 10 years at some rate will be Rs.600 on a certain sum. If the principal is trebled after 5 years, what will be the total interest at the end of tenth year?