there businessmen makhoa, njau and odhiambo contribute a total amount of sh 120,000 to start a business. the ratio of the contribution of makhoa and njau was 2:3 and that of njau to odhiambo was 2:5. how much did odhiambo contribute?

Let makoha contribute x then njao contributes x * 3/2 = 1.5x

and odhiambo contributes 1.5x * 2.5 = 3.75 x

so we have the equation x + 1.5x + 3.75x = 120000

6.25x = 120000

x = sh 19,200 which is the amount for makhoa

Answer : amount contributed by odhiambo = 19,200 * 3.75 = sh 72,000