1.

A,B and C enter into a partnership in the ratio (7)/(2):(4)/(3):(6)/(5). After 4 months A increase his share 50%. If the total profit at the end of one year be ₹21,600, then B's share in the profit is :

Answer»

`₹2100`
`₹ 2400`
`₹ 3600`
`₹4000`

Solution :`(7)/(2):(4)/(3):(6)/(5)`
` =7xx 3 XX 5 :4XX 2 xx 5 : 6xx 2 xx 3`
`=105:40:36`
Now, for ratio of profit
` 105 xx 12 +(105)/(2)xx 8:40xx 12 :36xx 12`
`=1680:480:432`.
According to question
1680 +48x+432x=21600`
`rArr x=(21600)/(2592)`
`therefore` profit of `B=480x=(21600)/(2592)xx 480=4000 ₹`


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