Question

c it 'A complete work in 3 days and B' can complete the same work in 20 days, then in how many days will À and 'b' together complete The same work​

Answer 1

Given :- A can complete a work in 3 days and B can complete the same work in 20 days .

To Find :- In how many days will A and B together complete the same work ?

Solution :-

→ LCM of 3 and 20 = 60 units = Let total work done .

So,

→ Efficiency of A = Total work done / Time taken = 60/3 = 20 units / day

→ Efficiency of B = Total work done / Time taken = 60/20 = 3 units / day

then,

→ Efficiency of (A + B) = 20 + 3 = 23 units / day .

therefore,

→ Time taken by (A + B) to complete same work = Total work done / Efficiency = 60/23 = 2(14/23) days .

Hence, A and B together can complete the same work in (60/23) days.

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Answer 2

Answer:

623

Explanation:

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