If 7 workers can assemble a car in 8 hours, how long it would take 12 workers to assemble the same car?

A 3 hours

B 3(1/2) hours

C 4(2/3) hours

D 5 hours

Solution

Correct Answer: Option C

৭ জনে করে ৮ ঘণ্টায়
১ জনে করে ৮ × ৭ ঘণ্টায়
∴ ১২ জনে করে(৮ × ৭)/১২ = ১৪/৩ = ৪(২/৩) ঘণ্টা

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