allery4 પુરુષોનું 15 દિવસનું કામ કેટલા માનવ-દિવસ બરાબર થાય?
A45
B50
C75
D60
Answer & Solution
Correct answer: D. 60
માનવ-દિવસ એટલે પુરુષો ગુણ્યા દિવસો, તેથી 4 x 15 = 60.
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