BD Merit - Freelancing, BCS, Bank, Primary, Admission, NTRCA

1 . If 40 men can make 30 boxes in 20 days. How many more men are needed to make 60 boxes in 25 days?

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Answer: Option A

Explanation:

ধরি, 25 দিনে 60 টি বক্স তৈরি করতে x জন লোক লাগবে। ∴ (40 + x) জন লোক 25 দিনে 60 টি বক্স তৈরি করতে পারে 40 জন লোক 20 দিনে তৈরি করে 30 টি বক্স ∴ (40 + x) জন লোক 25 দিনে তৈরি করে= \frac{30 (40 + x) \times 25}{40 \times 20} প্রশ্নমতে, \frac{30 (40 + x) \times 25}{40 \times 20} = 60 \Rightarrow 40 + x = \frac{60 \times 60 \times 20}{40 \times 20} \Rightarrow 40 + x = 64 \Rightarrow x = 64 - 40 ∴ x = 24

Microcredit Regulatory Authority (সহকারী পরিচালক) 05-03-2021