Vaishali Bhatia and Rupesh Pathak Solutions for Chapter: Comparing Quantities, Exercise 4: Exercise 14.2

$120$ thousand cars were manufactured in a country in the year $2004-05$. The production of cars increased to  $150$ thousand in $2005-06$. Find the percentage increase in the amanufacture of cars?

A garden has $2000$ trees. $12\%$ of these trees are mango trees, $18\%$ are lemon trees and the rest $70\%$ are orange trees. Find the number of orange and lemon trees in total.

In an entrance examination, $21\%$ of the candidates passed. If a total of $3150$ candidates passed the examination, find the total number of candidates that appeared in the examination.

Arnav scored $271$ out of $300$ and Ananya scored $333$ out of $350$. Find the percentage marks scored by Arnav and Ananya. Whose performance is better?

During off season, a showroom announced a discount with $30\%$ on all its items. If the reduced price of the jacket is $₹2100$, find the original price $\left(\mathrm{in} ₹\right)$ of the jacket.

In a class, there are $40\%$ boys. What is the percentage of girls in the class? Find the number of boys if the total number of girls in the class is $24$.

In an examination of maximum marks $250$, Arun failed by $1$ mark. If the minimum percentage required to pass in the examination was $40\%$, find the marks sored by Arun.

$40\%$ of the population of a hill-station are men, $30\%$ are women and the remaining are children. If the number of children are $522$, What is total population of the town?