due to fever efficiency of ramesh is reduced by 40% hence he takes 12 more days than earlier to complete . if next day he start working with 50 % of his original efficiency. now in how many days will complete the total work ?
Answers
Answer:
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Step-by-step explanation:
Here, i have considered the question as Ram's efficiency reduced to 40% not reduced by 40% . Because, it's given that when he starts next, his efficiency level is 50% ie efficiency has increased.
There are many methods to work out such problems.
Suppose , with his full efficiency , Ram completes ..
10 work …. in x days
Since efficiency level is 40% now
So, 4 work is done in x days
=> 10 work is done in (10x/4)days
& as per condition given
10x/4 - x = 12
=> 6x/4 = 12
=> x = 48/6 = 8 days
=> with full efficiency Ram completes the work in 8 days
With 40% efficiency Ram completes the work in (10*8)/4 = 20 days
& with 50% efficiency, if he starts a fresh , Ram will take 8 ÷ 1/2 = 16 days