If Jaya and Shushma together can complete a given task together in 40 days, if Jaya left the job after working for 15 days, and the remaining job was done by Shushma in 40 days, then in how many days Shushma can complete the whole work alone?
1.64 days
2. 72 days
3.80 days
56 days
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Answer:
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Step-by-step explanation:
according to my understanding
given:
j+s can finish whole work in 40 days
j+ s worked for 15 days
j left
s finished the remaining work
In 1 day j+s can do 1/40 part of work
in 15 days j+s can finish 15/40 = 3/8 part of work
remaining work = 1- 3/8 = 5/8 part of work
s can finish 5/8 work in 40 days
s can finish 1 work in 40÷5/8 = 40×8/5 =64days
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