Question

A, B तथा C किसी कार्य को क्रमशः 12,
15 तथा 20 दिन में पूरा कर सकते हैं। वे
मिलकर एक दिन में कितना कार्य पूरा
करेंगे ?​

Answer 1

Answer:

answer is 5

Step-by-step explanation:

A work = 1/12 in one day

B work = 1/15 in one day

C work = 1/20 in one day

they work together

then A+B+C = 1/12 + 1/15 + 1/20

A+B+C = (5+4+3)/60

A+B+C = 12/60

A+B+C = 1/5

this the work done by a ,b,c in one day

to get the just invert it

the answer is 5