Question

There were 600 students in a school. Each student was offered either English or hindi
or both. If 75% were offered English and 45% were offered hindi, how many were
offered both?​

Answer 1

Answer:

correct answers is 120

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Step-by-step explanation:

n(A) = 75% of 600 = 450

n(B) = 45% of 600 = 270 and n(A ∪ B) = 600

∵ n(A∩B) = n (A) + n(B) - n(A∪B) = (450 + 270 - 600) = 120