Option 3 : Rs 1450

**CALCULATION:**

S.I recieved in 3 years = Rs 450

S.I recieved in 5 years = 450/3 × 5 = Rs 750

Ram's sum = 1800 -750 = Rs 1050

Equivalent rate of C.I for 2 years at 20%= 20 + 20 + (20 × 20)/100 = 44%

Let Shyam's amount is Rs x more than Shyam's amount

∴ 44% of (1050 +x) = Rs 1100

44/100 × (1050 + x) = 1100

x = 2500 -1050 =Rs 1450

**∴ Shyam invested RS1450 more than Ram**

Equivalent C.I = r + r + (r)^{2}/100