question_answer 1)

Arun bought a car for ` 3, 50,000. The next year, the price went upto ` 3, 70, 000. What was the percentage of price increase?

Answer:

                \[\text{Percent increase =}\frac{\text{Amount of increase}}{\text{original amount}}\text{ }\] \[\text{ }\!\!\times\!\!\text{ 100 }\!\!%\!\!\text{ }\] \[=\frac{3,70,000-3,50,000}{3,50,000}\times 100%\] \[=\frac{20,000}{3,50,000}\times 100%=\frac{40}{7}%\]or \[5\frac{5}{7}%\]