Milind can fill a balloon with air in 30 seconds while Kishor can do the same in 20 seconds how long would the two friends take to fill 40 balloons if they work together
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in 1sec Milind can fill=1/30 balloon
in1 sec Kishore can fill=1/20 balloon
in I sec they can fill=1/12 balloon
1 balloon they can fill in 12 sec
40 balloon they can fill in =40*12=480sec=8min
in1 sec Kishore can fill=1/20 balloon
in I sec they can fill=1/12 balloon
1 balloon they can fill in 12 sec
40 balloon they can fill in =40*12=480sec=8min
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Step-by-step explanation:
how their 1/12 comes tell all method in step by step
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