Question

Sumit can complete 25% of a piece of work in 3 hrs. Anurag and Sumit can complete the whole work in 4 hrs. How much time (in hours) does Anurag require to complete 50% of that work?
2
1
3
6​

Answer 1

Answer:

he takes 2 hours to complete

Step-by-step explanation:

Anurag can complete total work in 4

as we halve it we get 2 hours

please mark me as brainlist

Answer 2

Answer:

(C)Anurag will take 3 hours to finish 50% of work

Step-by-step explanation:

Given that,

Sumit can complete 25% of a piece of work in 3 hrs.

Let us assume that,the total work that needs to be done is 1 unit.

Therefore,sumit completes $\frac{1}{4} units$ of the work in 3 hours.

Therefore,Work done by sumit in 1 hour is $\frac{1}{4\times3} =\frac{1}{12} units$

Let us assume that,the work done by Anurag in 1 hour is $\frac{1}{x} units$

According to the given problem,Anurag and Sumit can complete the whole work in 4 hours.Hence,mathematically we write it as shown below-

$\frac{4}{12} +\frac{4}{x} =1= > \frac{4}{x} =\frac{2}{3} \\= > x=6 hours$

It means that anurag can complete the whole work in 6 hours.Hence,to complete 50% of work,anurag will take-

$\frac{6}{2} =3 hours$

Therefore,Anurag will take 3 hours to finish 50% of work

#SPJ2