
Need help on this qn. Many thanks. There were 100 more boys than girl's in a club. When 120 boys and 170 girl's left the club, there were 3 times as many boys as girl's remaining. How many boys were there at first?



Need help on this qn. Many thanks. There were 100 more boys than girl's in a club. When 120 boys and 170 girl's left the club, there were 3 times as many boys as girl's remaining. How many boys were there at first?