Samanya Gyaan Darpan Solutions for Chapter: Practice Set, Exercise 14: Numerical Ability

If $70\%$ of students in a school are boys and the number of girls is $504$, the number of boys is:

A train $700 \mathrm{m}$ long is running at $72 \mathrm{km}/\mathrm{hr}$. If it crosses a tunnel in $1 \min$, the length of the tunnel is:

If a sum of money doubles itself in $8$ years at Simple interest, then the rate of interest p.a. is:

The ratio of ages of mother and son is $7:3$. If the sum of their ages is $60$ years, what is the difference in their ages?

Three partners A, B, C invest $Rs. 36000, Rs. 45000$ and $Rs. 54000$, respectively, in a business. Out of a total profit of $Rs. 37500$, C’s share is:

A is thrice as good a workman as B and takes $10$ days less to do a piece of work than B takes. B alone can do it in:

One tap can fill a cistern in $2$ hrs and another tap can empty the cistern in $3$ hrs. How long will they take to fill the cistern if both the taps are opened?

The marked price of a fan is $₹620$. Due to off season, a $15\%$ discount is allowed. The selling price of the fan is: