A concrete mixture was made of cement, chips and sand. The ratio of the cement and chip is the same as that of chips and the sand. If 144 bags of cement and 225 bags of sand were used is the mixture. Find the number of bags of chips used in the mixture.
Cement: Chip = Chip : Sand
∴ (Chip)2 = Cement × Sand
∴ (Chip)2 = 144 × 225
Chip = 12× 15.= 180
∴ Number of bags of chips is 180.
