alleryA, B અને C સાથે મળીને 4 દિવસમાં કામ પૂરું કરે છે; A અને B ને સાથે મળીને 6 દિવસની જરૂર પડે છે. C ને એકલા જરૂર પડશે:
A8 દિવસ
B12 દિવસ
C10 દિવસ
D24 દિવસ
Answer & Solution
Correct answer: B. 12 દિવસ
C નો દર પ્રતિ દિવસ 1/4 - 1/6 = 2/24 = 1/12 છે, તેથી 12 દિવસ.
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