A एक काम को 10 दिन में करता ह , B उसी काम को 15 दिन मके करता ह , तो दोनों मिल कर उस काम को कितने दिन में करेंगे ?
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A do the work in 10 day i,e, in one day it do 1/ 10 of the work
B do the work in 15 day i,e, in one day it do 1/ 15 of the work
Both together do the work = 1/10+1/15 = 5/30= 1/6
:.1 divided by 1/6 = 6 days
hence both can do the work in 6 days
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