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

A 24

Correct Answer: 24

প্রশ্নে বলা হচ্ছে, 40 জন লোক 20 দিনে 30 টি বাক্স তৈরি করে 25 দিনে 60 টি বাক্স তৈরি করতে অতিরিক্ত কতজন লোক লাগবে? ধরি, 25 দিনে 60 টি বাক্স তৈরি করতে অতিরিক্ত জন লোক লাগবে। .:. (40 + x) জন লোক 25 দিনে 60 টি বাক্স তৈরি করতে পারে। এখন, 40 জনে 20 দিনে তৈরি করে = 30 টি বাক্স .:. (40 + x )জনে 25 দিনে তৈরি করে = 30(40 + x)×2540×20 প্রশ্নমতে, 30(40 + x)×2540×20 = 60 >40 + x = 60×60×2030×25 = 64 .:. x = 60 - 40 = 24
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