alleryP એ Q કરતાં ત્રણ ગણી ઝડપે કામ કરે છે, અને P એકલા Q કરતાં 20 દિવસ વહેલા કામ પૂરું કરે છે. P ને એકલા કેટલા દિવસ લાગશે?
A30 દિવસ
B20 દિવસ
C15 દિવસ
D10 દિવસ
Answer & Solution
Correct answer: D. 10 દિવસ
Q ને P ના સમય કરતાં ત્રણ ગણો સમય લાગે છે, તેથી 3t - t = 20 પરથી P માટે t = 10 દિવસ મળે છે.
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