Question

If the interest on Rs. 2000 at the certain rate for certain period Rs. 200. Find the interest on Rs. 4000 at the double of the previous rate for twice of the previous period. 1. Rs. 800 2 Rs. 400 3 Rs. 1600 4. Rs. 200. with method ​

Answer 1

Answer:

1600

Step-by-step explanation:

SI = P×R×T/100

First

200 = 2000×R×T/100

R×T = 10

Second

SI = 4000 × 2R × 2T /100 = 40 × 4 × RT = 1600

Answer 2

Step-by-step explanation:

200=2000×rt/100

rt=1

sl=4000×2 r×2t/100

40×4×rt=1600