alleryتین پینٹرز صرف 12، 15 اور 20 دن لیتے ہیں۔ تینوں مل کر کام کریں تو کام لگ جاتا ہے۔
A3 دن
B4 دن
C5 دن
D6 دن
Answer & Solution
Correct answer: C. 5 دن
روزانہ کام (5 + 4 + 3)/60 = 12/60 = 1/5 کام کا ہے، لہذا 5 دن۔
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