In a certain school,20 % of students are belo | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Let the total number of students be $x$.Number of students below $8$ years of age $= 20\% 	ext{ of } x = 0.2x$.Number of students of $8$ years of

Vedclass · Accepted Answer

$100$

Vedclass · Answer

(D) Let the total number of students be $x$.Number of students below $8$ years of age $= 20\% 	ext{ of } x = 0.2x$.Number of students of $8$ years of age $= 48$.Number of students above $8$ years of age $= \frac{2}{3} 	imes 48 = 32$.The sum of students in all three categories equals the total number of students $x$:$0.2x + 48 + 32 = x$$0.2x + 80 = x$$80 = x - 0.2x$$80 = 0.8x$$x = \frac{80}{0.8} = 100$.Therefore,the total number of students in the school is $100$.

In a certain school,$20 \%$ of students are below $8$ years of age. The number of students above $8$ years of age is $\frac{2}{3}$ of the number of students of $8$ years age,which is $48$. What is the total number of students in the school?

Similar Questions

$A$ reduction of $10 \%$ in the price of tea enables a dealer to purchase $25 \ kg$ more tea for $Rs \ 22500$. What is the reduced price per $kg$ of tea?

$A$ district has $64000$ inhabitants. If the population increases at the rate of $2 \frac{1}{2} \%$ per annum,then the number of inhabitants at the end of $3$ years will be...

If the price of a book is first decreased by $25 \%$ and then increased by $20 \%,$ then the net change in the price will be

The number of students in a class is increased by $20 \%$ and the number now becomes $66$. Initially,the number was:

The tax on a commodity is diminished by $10 \%$ and its consumption increases by $10 \%$. Find the effect on revenue.

Vedclass Test Series

Exam Paper Generator

Online Exam Module