Dr Pooranmal and Ashfaq A Khan Solutions for Chapter: Revision, Exercise 1: Exercise

A boat is rowed at a speed of $5 km/hour$. How much time will it take to row a distance of $40 km$?

Evaluate: $80\% of 365 days$

Evaluate: $1\% of 300 kg$

 A team won 80% of the 15 games played by it. How many games did it win? How many games did it lose?

In a college library, there were $5000$ books, Out of these books, $500$ books were discarded. What percentage of books was discarded?

Calculate the simple interest of $₹1600$ at $9\%$ per annum for $4$ years.

Asif borrowed $₹1200$ at $7\%$ interest per annum. What amount does he have to pay after $3\frac{1}{2}$ years?

Find the time when principal is $₹800$ and simple interest is $₹96$ at the rate of $6\%$ per annum.