Question

In a class of 60 students, 40 per cent can speak only Hindi, 25 per cent can speak only English and rest of the students can speak both the languages. Total how many students can speak English?

Answer 1

Step-by-step explanation:

N(U) = 60

N.(H) = 40% of 60

N.(H) =

$\frac{40}{100} \times 60 \: = \: 24$

N.(E) = 25% of 60

N.(E) =

$\frac{25}{100} \times 60 \: = \: 15$

N(HnE) = 60 - 24 - 15 = 21

N(E) = ???

N(E) = N.(E)+N(HnE)

= 15 + 21 = 36

where, N(U) = Total students

N.(E) = Students who can speak English

only

N.(H) = Students who can speak Hindi

only

N(HnE) = Students who can speak both

N(E) = Students who can speak English

Answer is 36