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1. Arun, Kamal and Vinay invested Rs. 8000, Rs. 4000 and Rs. 8000 respectively in a business. Arun left after six months. If after eight months, there was a gain of Rs. 4005, then what will be the share of Kamal?

A. Rs. 890

B. Rs. 1335

C. Rs. 1602

D. Rs. 1780

Solution:

\begin{aligned} Arun : Kamal : Vinay \\ = (8000 \times 6) : (4000 \times 8) : (8000 \times 8) \\ = 48 : 32 : 64 \\ = 3 : 2 : 4 \\ ∴ Kamal's share \\ = R s . (4005 \times \frac{2}{9}) \\ = R s . 890 \end{aligned}

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