alleryKiran Lata-তকৈ তিনিগুণ দক্ষ, যাৰ অকলে 60 দিন প্ৰয়োজন। দুয়োৰে একেলগে প্ৰয়োজন হ'ব
A18 দিন
B12 দিন
C15 দিন
D20 দিন
Answer & Solution
Correct answer: C. 15 দিন
Lata-ই প্ৰতিদিনে 1/60 আৰু Kiran-এ 3/60 কৰে, মুঠ 4/60 = 1/15, গতিকে 15 days।
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