Question

find the amount to be paid at the end of 3 years in each case:
(a) principal = rupees 1,200 at 12 percent p.a.
(b) principal = rupees 7,500 at 5 percent p.a.​

Answer 1

this is the answer using the formula of amount it can also be done by finding SI of each year and adding it to the principal.

Answer 2

For part A refer the attachment above ⚡

Part B

Answer:-

₹ 8625

Step-by-step explanation:-

P = ₹7500

R = 5%

T = 3 years

$\sf{ S.I. = \dfrac{ = P \times R \times T}{100}}$

$\sf{S.I. = \dfrac{7500 \times 5 \times 3}{100} }$

$\sf{S.I. = \dfrac{75 \cancel{00} \times 5 \times 3}{ \cancel{100}}}$

$\sf{S.I. = 75 \times 5 \times 3}$

S.I. = ₹1125

Now, for finding Amount,

A = P + I

A = 7500 + 1125

A = ₹8625

Therefore, Amount paid at the end of 3rd year = ₹8625

Here,

P = Principal

R = Rate

T = Time

S.I. = Simple interest

A = Amount

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