If in an examination 20 % students failed in | vedclass

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

Question

(D) Let $H$ be the set of students who failed in Hindi and $E$ be the set of students who failed in English.Given: $n(H) = 20 \%$,$n(E) = 25 \%$,and $

Vedclass · Accepted Answer

$38$

Vedclass · Answer

(D) Let $H$ be the set of students who failed in Hindi and $E$ be the set of students who failed in English.Given: $n(H) = 20 \%$,$n(E) = 25 \%$,and $n(H \cap E) = 7 \%$.We need to find the percentage of students who failed in at least one subject,which is $n(H \cup E)$.Using the formula: $n(H \cup E) = n(H) + n(E) - n(H \cap E)$.$n(H \cup E) = 20 \% + 25 \% - 7 \% = 38 \%$.Therefore,$38 \%$ of students failed in at least one subject.

If in an examination $20 \%$ students failed in Hindi,$25 \%$ failed in English,and $7 \%$ failed in both subjects,then what is the percentage of students who failed in at least one of the subjects (in $\%$)?

Similar Questions

If $35 \%$ of a number is $12$ less than $50 \%$ of that number,then the number is:

The price of rice has been increased by $20 \%$. By what per cent should Sanjay reduce the consumption of rice in the family so that the expenditure on rice remains the same as before the increase in the price of rice?

$1200$ boys and $650$ girls appeared in an examination. If $70 \%$ of boys and $40 \%$ of girls failed,find the approximate percentage of passed students.

If Rs. $2800$ is $\frac{2}{7}$ of the value of a house,what is the total worth of the house (in Rs.)?

The percentage increase in the surface area of a cube when each side is doubled is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module