If A and B together can complete a piece of work in 15 days and B alone in 20 days, in how many days can A alone complete the work?

Question

নিচের অপশন গুলা দেখুন

• 60
• 30
• 40
• 45

Answer 1

সঠিক উত্তর হচ্ছে: 60

ব্যাখ্যা: one days work of A= one days work of (A+B)- one days work of B=1/15 -1/20=1/60,so days needed to complete the work by A alone =60 days