alleryਅੱਠ ਕਾਮਿਆਂ ਵਿੱਚੋਂ ਹਰੇਕ ਨੇ ਇੱਕ ਕੰਮ ਵਿੱਚ 9 ਘੰਟੇ ਲਗਾਏ। ਸਾਰੇ ਕੰਮ ਵਿੱਚ ਬਿਤਾਏ ਗਏ ਮਨੁੱਖ-ਘੰਟੇ ਹਨ
A64
B17
C72
D81
Answer & Solution
Correct answer: C. 72
ਮੈਨ-ਘੰਟੇ ਵਰਕਰ ਵਾਰ ਘੰਟੇ ਹਨ, ਇਸ ਲਈ 8 x 9 = 72।
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