A and B separately can do a work in 10 and 15 days respectively. They worked together for some days and then A completed the remaining work in 5 days. For how many days had A and B worked together?
Ps thanks a lot. Generally, I mark the first answer as the brainliest :)
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They work together for 3days..............
thenerdyhipster:
but how?
i have a short trick for sol any question of time and work
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