A can complete a piece of work in 12 days and B is 60% more efficient than A. In how many days B will complete the same work ?

Question

নিচের অপশন গুলা দেখুন

• 5 hrs
• 8.7 hrs
• 5.2 hrs
• 7.5 hrs

Answer 1

সঠিক উত্তর হচ্ছে: 7.5 hrs

ব্যাখ্যা:

Ratio of times taken by A and B = 160 : 100
A can do the work in 12 days
Let B can do the work in "D" days
=> 160:100 = 12 : D
=> D = 12 x 100/160 = 7.5 hrs