Ashok Gupta and Rajat Jain Solutions for Chapter: Practice Set, Exercise 75: Quantitative Aptitude

A reduction in the price of apples enables a person to purchase $3$ apples for $Rs. 1$ instead of $Rs. 1.25$. What is the $\%$ of reduction in price?.

The ratio of monthly incomes of A and B is $6:5$ and their monthly expenditures are in the ratio $4:3$. If each of them saves $Rs. 400$ per month, find the sum of their monthly incomes.

The value of $152\left(\sin {30}^o+2 {\cos }^2 {45}^o+3 \sin {30}^o+4 {\cos }^2 {45}^o+\cdots \cdots +17 \sin {30}^o+18 {\cos }^2 {45}^o\right)$ is:

$ABC$ is a right-angled triangle, $B$ being the right angle. Mid-points of $BC$ and $AC$ are respectively $B\text{'}$ and $A\text{'}$. The ratio of the area of the quadrilateral $AA\text{'}BB\text{'}$ to the area of the triangles $ABC$ is:

If the arcs of square length in two circles subtend angles of $60°$ and $75°$ at their centres, the ratio of their radii is: 

Study the following histogram and answer the following questions :

The total number of students involved in the data is :

Study the following histogram and answer the following questions :

The least number of students got the marks in the interval :

Study the following histogram and answer the following questions :

The difference in the amount estimated by the family on interior decoration and architect's fees is :