Kiran and Vishal invested Rs 4200 and Rs.x in a business. After 3 months, Kiran added Rs 600 while Vishal withdrew Rs 300. After a year out of a total profit of Rs.47,180, Vishal received Rs 21,140. Find the amount invested by Vishal at the starting of business?
Ratio of shares of Kiran and Vishal = 4200 × 3 + 4800 × 9 : x × 3 + (x - 300) × 9 = 55800 : (12x - 2700) So, (12x - 2700)/(55800 + 12x - 2700) × 47180 = 21140 x = Rs.4000
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