Question

find the simple interest on rs.15600 for 3 years and 4 months at 7.5 %per annum.​

Answer 1

Answer:

Given :-

• Principal = Rs 15600
• Time Period = 3 years and 4 months = 3 + 4/12 = 36 + 4/12 = 40/12 years
• Rate of Interest = 7.5% per annum

To Find :-

• What is the Simple Interest ?

Solution :-

❒ Simple Interest :

$\implies \sf\boxed{\bold{S.I. =\: \dfrac{P \times R \times T}{100}}}$

$\implies \sf S.I. =\: \dfrac{15600 \times 7.5 \times \dfrac{40}{12}}{100}$

$\implies \sf S.I. =\: \dfrac{\dfrac{4680000}{12}}{100}$

$\implies \sf S.I. =\: \dfrac{390000}{100}$

$\implies \sf\bold{S.I. =\: Rs\: 3900}$

∴ The simple interest is Rs 3900 .

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★ Extra Information ★

❒ Simple Interest Formula :

$\leadsto \sf\boxed{\bold{S.I. =\: \dfrac{P \times R \times T}{100}}}$

❒ Principal Formula :

$\leadsto \sf\boxed{\bold{P =\: \dfrac{100 \times S.I.}{R \times T}}}$

❒ Rate of Interest Formula :

$\leadsto \sf\boxed{\bold{R =\: \dfrac{100 \times S.I.}{P \times T}}}$

❒ Time Period Formula :

$\leadsto \sf\boxed{\bold{T =\: \dfrac{100 \times S.I.}{P \times R}}}$

❒ Amount Formula :

$\leadsto \sf\boxed{\bold{Amount =\: P + S.I.}}$

where,

• S.I. = Simple Interest
• P = Principal
• R = Rate of Interest
• T = Time Period