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Partnership - General Aptitude

Q1:

A, B and C enter into a partnership in the ratio  :  : . After 4 months, A increases his share 50%. If the total profit at the end of one year be Rs. 21,600, then B's share in the profit is:

A Rs. 2100

B Rs. 2400

C Rs. 3600

D Rs. 4000

ANS:D - Rs. 4000

Ratio of initial investments = 7 : 4 : 6 = 105 : 40 : 36.
2 3 5
Let the initial investments be 105x, 40x and 36x.
 A : B : C = 105x x 4 + 150 x 105x x 8 : (40x x 12) : (36x x 12)
100
   = 1680x : 480x : 432x = 35 : 10 : 9.
Hence, B's share = Rs. 21600 x 10 = Rs. 4000.
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