1.

1). Rs. 6802). Rs. 20003). Rs. 12504). Rs. 3500

Answer»

LET the amount LENT at 5% be Rs. x

MONEY lent at 3% = Rs. (4000 – x)

SIMPLE interest on Rs. x = (Principal × Time × RATE)/100

⇒ Simple interest = (x × 4 × 5)/100 = Rs. x/5

Total interest = Rs. 640

∴ Interest on Rs. (4000 – x) = Rs. (640 – x/5)

⇒ [(4000 – x) × 4 × 3)]/100 = 640 – x/5

⇒ 3(4000 – x)/25 = 640 – x/5

⇒ 12000 – 3x = 16000 – 5x

⇒ 2x = 4000

⇒ x = 2000

∴ Money lent at 5% is Rs. 2000



Discussion

No Comment Found

Related InterviewSolutions