If a Person A do the work in 20 days and a Person B do the work in 30 days.If both person do that work together,in how many days will they take to do that work?
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if A person take 20 days is =X
if Bperson take 30daya is =y
= X +Y
= 20+30
=50
if Bperson take 30daya is =y
= X +Y
= 20+30
=50
kunalkv99:
Wrong man
answer is coming 12 in my book but dont know how to do it!! ;)
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