Hi, need help with this question. Tq!
Mr Vik bought some bottles of water at $0.90 each and 12 bottles of fruit juice at $2.30 each. His sister bought the same number of bottles of water as him but at $0.50 each. She also bought 12 bottles of fruit juice at $3 each. They spent the same amount of money. How many bottles of water did Mr Vik buy?