Question

shanthi deposited 6000 in a bank and received 7500 at the end of 5 years. find the rate of interest.​

Answer 1

GIVEN:

p=6000

a=7500

t=5

so, SI=p.t.r/100

SI=A-P=7500-6000

USING FORMULA:

1500=6000 x 5 x R /100

150000/30000=R

r=5%

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Answer 2

✬ Rate = 5 % ✬

Step-by-step explanation:

Given:

• Shanthi deposited Rs 6000 (P) in bank.
• She received Rs 7500 (A) after 5 years.
• Time (T) is 5 years.

To Find:

• What is the rate (R) of interest ?

Solution: Let the rate of interest be R% . Here,

• P = Principal, A = Amount , T = Time & R = Rate

We know that the formula for Interest is

★ Interest = Amount – Principal ★

➯ Interest = Rs ( 7500 – 6000 )

➯ Interest = Rs 1500.

Now, using the formula of Simple Interest

★ S.I = ( Principal x Rate x Time/100 ) ★

A/q

$\implies{\rm }$ 1500 = ( 6000 $\times$ R $\times$ 5/100 )

$\implies{\rm }$ 1500 = ( 60 $\times$ R $\times$ 5 )

$\implies{\rm }$ 1500 = 300R

$\implies{\rm }$ 1500/300 = R

$\implies{\rm }$ 5 % = R

Hence, The rate of interest is 5 % .

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★ Verification ★

➟ 1500 = ( 6000 $\times$ 5 $\times$ 5/100 )

➟ 1500 = ( 60 $\times$ 25 )

➟ 1500 = 1500

[Verified]