alleryمینا 18 دنوں میں اور گیتا 9 دنوں میں باڑ پینٹ کر سکتی ہے۔ اگر وہ ہاتھ ملاتے ہیں تو باڑ اندر ہو جاتی ہے۔
A5 دن
B6 دن
C7 دن
D8 دن
Answer & Solution
Correct answer: B. 6 دن
وہ مل کر روزانہ باڑ کا 1/18 + 1/9 = 3/18 = 1/6 پینٹ کرتے ہیں، لہذا 6 دن۔
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