The difference between C.I. and S.I. at 10% in 2 years on ₹ 100 is: 1. ₹ 1 2. ₹ 41 3. ₹ 00 4. none of these

For S.I. : P = ₹ 100 R = 10% T = 2 years For C.I. : For 1st year : P = ₹ 100 T = 1 year R = 10% Amount = P + I = ₹ 100 + ₹ 10 = ₹ 110 For 2nd year : P = ₹ 110 R = 10% T = 1 year Amount = P + I = ₹ 110 + ₹ 11 = ₹ 121. C.I. = Final amount - Initial principal = ₹ 121 - ₹ 100 = ₹ 21. Difference between C.I. and S.I. = ₹ 21 - ₹ 20 = ₹ 1. Hence, option 1 is the correct option.