hello , my question is if ram do a work in 2/8 days and sitado the same work in 1/9 days . then if they start workingtogether in how many days they will work .

sounds difficult ??????????

Let the work is done in m days.Using the formula, 1m=12/8+11/91m=82+91=4+9=13So , m = 113, hence working together they can do the work in 113days.

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