Find the interest of rs 25000 for per annum :Find the amount to be paid at the end of the period.
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(i) Principal (P) = Rs 2000
Rate of interest (R) = 5% p.a.
Time (T) = 5 years
Simple interest =
P×R×T
100
=
2000×5×5
100
=Rs 500
(ii) Principal (P) = Rs 500
Rate of interest (R) = 12.5% p.a.
Time (T) = 4 years
Simple interest =
P×R×T
100
=
500×12.5×4
100
=Rs 250
(iii) Principal (P) = Rs 4500
Rate of interest (R) = 4% p.a.
Time (T) = 6 months
T =
6
12
=
1
2
year (1 year = 12 months)
Simple interest =
P×R×T
100
=
4500×4×
1
2
100
=
4500×4×1
100×2
=Rs 90
(iv) Principal (P) = Rs 12000
Rate of interest (R) = 18% p.a.
Time (T) = 4 months =
4
12
=
1
3
year (1 year = 12 months)
Simple interest =
P×R×T
100
=
12000×18×1
100×3
=Rs 720
(v) Principal (P) = Rs 1000
Rate of interest (R) = 10% p.a.
Time (T) = 73 days =
73
365
year (1 year = 365 days)
Simple interest =
P×R×T
100
=
1000×10×73
100×365
=Rs 20
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