(2) Let ₹ x be lent out at 6% S.I. per annum and ` (1000 – x) be lent out at 8% S.I. per annum. Now we have, 6% of x + 8% of (1000 – x) = 75 ⇒ 6% of x + 8% of 1000 – 8% of x = 75 ⇒ 80 – 2% of x = 75 ⇒ 2% of x = 5 ⇒ 1% of x = 2.5 ⇒ x = 250 Thus, Amount lent out at 8% S.I. per annum = (1000 – x) = (1000 –250) = ₹ 750