there are two buildings P and Q if 15 persons are sent from P to Q then find the number of persons in each building if the same. if 20person are sent f rom Q to P then the number of person in P is double the number of person in Q. how many person are there in building p?
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p-30=(p+60)/2
2p-60=p+60
2p-p=60+60
2p=120
p=60
therefore there are 60 persons in building P
2p-60=p+60
2p-p=60+60
2p=120
p=60
therefore there are 60 persons in building P
shivam123443348:
120 is the right answer
no its 60
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