paul and Peter undertake to do a piece of work of Rs. 700.paul alone can do the work in 5days.lisa Alon can do it in 10days.if Peter helps then they can finish the work in 3days.what will be the appror. share of Peter?
Answers
Given : paul and Peter undertake to do a piece of work of Rs. 700
To find : share of Peter
Solution:
paul alone can do the work in 5days
=> Earning Of Paul in 5 days = 700 Rs
=> Earning of Paul in 1 day = 700/5 = 140 Rs
=> Earning of Paul in 3 Days = 3 * 140 = 420 Rs
lisa Alon can do it in 10days
=> Earning of Lisa in 10 Days = 700 Rs
=> Earning of Lisa in 1 Day = 700/10 = Rs 70
=> Earning of Lisa in 3 Days = 3 * 70 = Rs 210
Earning of Paul = Rs 420
Earning of Lisa = Rs 210
Earning of Peter = 700 - 420 - 210 = Rs 70
Share of Peter = Rs 70
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The approximate share of peter is ₹ 70
Step-by-step explanation:
From question, Paul alone can do the work in 5 days:
Income of Paul in 5 days = ₹ 700
Income of Paul in 1 days = ₹ 700/5
Income of Paul in 3 days = ₹ 700/5 × 3 = ₹ 420
From question, Lisa alone can do it in 10 days:
Income of Lisa in 10 days = ₹ 700
Income of Lisa in 1 days = ₹ 700/10
Income of Lisa in 3 days = ₹ 700/10 × 3 = ₹ 210
Now, the share of Peter is:
⇒ Peter's share = ₹ 700 - ₹ 420 - ₹ 210
∴ Peter's share = ₹ 70