Question

A,B,or C milkar kisi kary ko 30minut main pura kar skte hai .A,B milkar us kary ko 50 minut main pura kar skte hain .C akele us kary ko kitane samy main pura kar skega.

Answer 1

Step-by-step explanation:

Correct Option: D

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

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