Find the amount and the compound interest.
No. Principal (₹) Rate (p.c.p.a.) Duration (years)
1 2000 5 2
2 5000 8 3
3 4000 7.5 2
Answers
Answered by
43
Solution :
1 ) Principal ( P ) = Rs 2000,
Rate of interest ( r ) = 5 %
Duration ( n ) = 2
Amount ( A ) = P( 1 + r/100 )ⁿ
A = 2000( 1 + 5/100 )²
A = 2000 ( 21/20 )²
A = ( 2000 × 21 × 21 )/( 20 × 20)
A = Rs 2205
Compound Interest = A - P
= 2205 - 2000
= Rs 205
_________________________
2 ) P = Rs 5000
r = 8 % ,
n = 3 ,
A = 5000( 1 + 8/100 )³
A = 5000 ( 27/25 )³
A =Rs 6298.56
Compound Interest = A - P
= Rs 6298.56 - Rs 5000
= Rs 1298.56
__________________________
3 ) P = Rs 4000,
r = 7.5%
n = 2
A = 4000( 1 + 7.5/100 )²
A = 4000( 107.5/100 )²
A = Rs 4622.50
Compound Interest = A - P
= Rs 4622.50 - 4000
= Rs 1622.50
••••
1 ) Principal ( P ) = Rs 2000,
Rate of interest ( r ) = 5 %
Duration ( n ) = 2
Amount ( A ) = P( 1 + r/100 )ⁿ
A = 2000( 1 + 5/100 )²
A = 2000 ( 21/20 )²
A = ( 2000 × 21 × 21 )/( 20 × 20)
A = Rs 2205
Compound Interest = A - P
= 2205 - 2000
= Rs 205
_________________________
2 ) P = Rs 5000
r = 8 % ,
n = 3 ,
A = 5000( 1 + 8/100 )³
A = 5000 ( 27/25 )³
A =Rs 6298.56
Compound Interest = A - P
= Rs 6298.56 - Rs 5000
= Rs 1298.56
__________________________
3 ) P = Rs 4000,
r = 7.5%
n = 2
A = 4000( 1 + 7.5/100 )²
A = 4000( 107.5/100 )²
A = Rs 4622.50
Compound Interest = A - P
= Rs 4622.50 - 4000
= Rs 1622.50
••••
Answered by
10
Answer:
Step-by-step ) Principal ( P ) = Rs 2000,
Rate of interest ( r ) = 5 %
Duration ( n ) = 2
Amount ( A ) = P( 1 + r/100 )ⁿ
A = 2000( 1 + 5/100 )²
A = 2000 ( 21/20 )²
A = ( 2000 × 21 × 21 )/( 20 × 20)
A = Rs 2205
Compound Interest = A - P
= 2205 - 2000
= Rs 205
_________________________
2 ) P = Rs 5000
r = 8 % ,
n = 3 ,
A = 5000( 1 + 8/100 )³
A = 5000 ( 27/25 )³
A =Rs 6298.56
Compound Interest = A - P
= Rs 6298.56 - Rs 5000
= Rs 1298.56
__________________________
3 ) P = Rs 4000,
r = 7.5%
n = 2
A = 4000( 1 + 7.5/100 )²
A = 4000( 107.5/100 )²
A = Rs 4622.50
Compound Interest = A - P
= Rs 4622.50 - 4000
= Rs 1622.50
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