allery20 জন-ঘণ্টা প্ৰয়োজন হোৱা এটা কাম 5 জন সমানে দক্ষ ব্যক্তিৰে গঠিত দল এটাই শেষ কৰিব
A2 ঘণ্টা
B10 ঘণ্টা
C5 ঘণ্টা
D4 ঘণ্টা
Answer & Solution
Correct answer: D. 4 ঘণ্টা
20 man-hours ক 5 জন শ্ৰমিকৰে ভাগ কৰিলে 4 hours পোৱা যায়।
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