Question

10 students can do a job in 8 days, but on the starting day ,
two of them informed that they are not coming. by what
fraction will the number of days required for the doing the whole
work gets increased ?
a.) 4/5
b.) 3/8
c.) 3/4
d.) 1/4

Answer 1

`10 students can do a job in 8 days`

so 1 student can do the same job in 80 days
that means 8 students can do it in 10 days

Answer 2

it takes 2 extra days to finish the job :
\[\dfrac{2}{8}\]

Answer 3

how u came over the \(\dfrac{2}{8}\)

Answer 4

it asks for a fraction of "number of days increased"

Answer 5

the reference is the original 8 days, so..

Answer 6

ok \(\dfrac{\rightarrow 2}{8}\)

how does the \(2\) comes

Answer 7

as per original plan, it has to take `8` days to finish the job
but now it is going to take `10` days

that just means 2 extra days

Answer 8

ok thnx