Answer : 3 Rs.2000 Explanation : Answer: C) Rs.2000 Explanation: Let money invested by Raghu = Rs. xMoney invested by Trishul = 9/10 x = 0.9xMoney invested by Vishal = 9/10x * 110/100 = 0.99xAlso, x 0.9x 0.99x = 5780= x= 5780/2.89 = 2000Therefore, amount invested by Raghu is Rs. 2000.

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