alleryદેવ ઈશા કરતાં 50% વધુ કાર્યક્ષમ છે, જે એકલી એક કામ 30 દિવસમાં પૂરું કરે છે. દેવને એકલા જરૂર પડશે:
A15 દિવસ
B45 દિવસ
C25 દિવસ
D20 દિવસ
Answer & Solution
Correct answer: D. 20 દિવસ
દેવનો દર પ્રતિ દિવસ 1.5 x 1/30 = 1/20 છે, તેથી તેને 20 દિવસની જરૂર પડે.
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