alleryA ને 12 દિવસ અને B ને 24 દિવસ લાગે છે. કામ પૂરું થવાના 3 દિવસ પહેલાં A કામ છોડી દે છે. કુલ કેટલો સમય લાગ્યો હતો?
A10 દિવસ
B9 દિવસ
C12 દિવસ
D8 દિવસ
Answer & Solution
Correct answer: A. 10 દિવસ
B એ x દિવસ કામ કર્યું અને A એ x - 3 દિવસ કામ કર્યું: x/24 + (x-3)/12 = 1 પરથી x = 10 દિવસ મળે છે.
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