AFCAT II 26 AUG 2022 Shift 1 Paper

A lends Rs. 4000 to B and a certain sum to C at the same time at 7% per annum simple interest Time =5 years
A receives Rs. 3500 as interest from B and C
Formula used:
Simple Interest =‌

‌ Principal ‌×‌Rate ‌×‌ Time ‌

100

let y be the sum lent to C by A,
Interest for 5 years =3500
Interest for 1 year =3500∕5
=700
‌

4000×7×1

100

+‌

y×7×1

100

=700
40×7×1+‌

y×7×1

100

=700
280+0.07y=700
0.07y=700−280
0.07y=420
y=‌

420

0.07

y=‌

420

7 100

y=6000
Amount lent to C by A=Rs‌.6000
Difference between C and B=6000−4000 =Rs‌.2000
∴ Answer is Rs. 2000 .