RRB RPF RPSF SI and CONS Model Papers 5 with solutions

(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