Let the amount deposited in bank = Rs. 100x and in post office = Rs. (3,00,000−100x) Time period =
1
12
years Simple interest =
P×R×T
100
According to ques, ⇒ (
100x×6×1
12×100
)+(
(3,00,000−100x)×10×1
12×100
)= 2000 ⇒ (
x
2
)+(2500−
5x
6
) = 2000 ⇒
5x
2
−
x
2
=2500−2000 ⇒
x
3
=500 ⇒ x=500×3=1500 Thus, amount deposited in bank = 100 × 1500 = Rs. 1, 50, 000 Amount deposited in post office = 3, 00, 000 − 1, 50, 000 = Rs. 1, 50, 000 ∴ Difference of his deposits in the post office and in the bank = 0