Question

2. Find the time for the following.
a. SI = Rs1181.25, P = Rs15,000, R = 6.3% p.a.
b. A = Rs31,192, P = Rs28,000, R = 7.2%p.a.
C. SI =Rs 1750, P=Rs1000, R = 7% p.a.
d. A=Rs68,179.20, P=Rs67,000, R = 5.28%p.a.
e. SI = Rs1000, P = Rs5000, R = 5% p.a.
f. SI = Rs20,000, P = Rs5000, R = 10% p.a.​

Answer 1

Step-by-step explanation:

1. SI = P × R × T / 100

1181.25 = 15000 × 6.3 × T / 100

1181.25 = 15 × 63 × T

T = 1185.25 / ( 15 × 63 )

T = 1.25 years

2. A = P + Sl then SI = A - P

SI = 31192 - 28000 = 3192

SI = P × R × T / 100

3192 = 28000 × 7.2 × T / 100

3192 = 28 × 72 × T

T = 3192 / ( 28 × 72 )

T = 1.58 years

3. 1750 = 1000 × 7 × T / 100

1750 = 10 × 7 × T

T = 1750 / 70

T = 15 years

4. SI = 68179.20 - 67000 = 1179.20

SI = P × R × T / 100

1179.20 = 67000 × 5.28 × T / 100

1179.20 = 67 × 52.8 × T

T = 1179.20 / ( 67 × 52.8 )

T = 0.33 years

5. 1000 = 5000 × 5 × T / 100

1000 = 50 × 5 × T

T = 1000 / 250

T = 4years

6. 20000 = 5000 × 10 × T / 100

20000 = 50 × 10 × T

T = 20000 / 500

T = 40 years