12 students can do a job in 10 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 doing the whole work get increased?
a)4/5
b)3/8
c)3/4
d)1/5
Answers
Answered by
4
Answer:
let the required days be 'x'
Step-by-step explanation:
original strength = 12
New strength = 12-2 = 10
12 × 10 = 10 × x
x = 12 days
days increased = 12-10 = 2 days
in fraction = 2/10 = 1/5 Answer
Option (d) is correct
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