alleryP हा Q पेक्षा तिप्पट वेगाने काम करतो, आणि P हा एकट्या Q पेक्षा 20 दिवस आधी काम संपवतो. एकट्या P ला लागणारे दिवस:
A30 दिवस
B20 दिवस
C15 दिवस
D10 दिवस
Answer & Solution
Correct answer: D. 10 दिवस
Q ला P च्या तिप्पट वेळ लागतो, म्हणून 3t - t = 20 वरून P साठी t = 10 दिवस मिळतात.
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