. Monika mixed orange syrup and water in the ratio 4 : 9. How many litres of orange syrup were required to mix with 324 L of water? Share with your friends Share 0 Shruti Tyagi answered this Dear Student, Ratio of orange syrup to water =4:9let litres of orange syrup=xthenx324=49cross mutiply to get9x=4×324x=4×3249⇒x=4×36⇒x=144 hence 144 litres of orange syrup is required. Regards, 1 View Full Answer