Asif is twice as good as workman as Bashir and together they finish a piece of work in 30 days. In how many days will Asif alone finish the work?

Asif is twice as good as workman as Bashir and together they finish a piece of work in 30 days. In how many days will Asif alone finish the work?
1). 90
2). 45
3). 60
4). 75

2 answers

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Guest · Answer 1 · 2019-04-19 16:27:50

Efficiency ratio of Asif and Bashir = 2 : 1

So, Ratio of time taken by Asif and Bashir = 1 : 2

Let Asif finish the work in x days and Bashir finish the same work in 2x days

According the question,

1/x + 1/2x = 1/30

⇒ 3/2x = 1/30

⇒ x = 3/2 × 30

⇒ x = 45 days

∴ Asif will alone finish the work in 45 days

Guest · Answer 2 · 2019-05-18 14:50:44