Question

IF A CAN DO A WORK IN 20 DAYS AND B CAN DO THE SAME WORK IN 12 DAYS HOW MANY DAYS THAY DO THE SAME WORK​

Answer 1

Answer:

7.5 days

Step-by-step explanation:

let there be 60 units of work(total)

then speed of A will be 3units per day

and speed of B will be 5 units per day

then total speed when they work together = 8 units per day

therefore total time taken by them will be

= (60/8) days

=7.5 days

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