Question

A sum of ₹3500 amounts to ₹4064 years at a certain rate of interest in what time will ₹6000 amount to ₹7200 at a same rate of interest?​



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don't dare to break ​

Answer 1

Amount = Rs. 7200

Principal = Rs. 6,000

Time = 4 years

Formula Used:

Amount = Principal + Interest

Simple interest = (Principal × Time × Rate of

interest)/100

Calculation:

Simple interest = Amount - Principal

Simple interest = Rs. 7200 - Rs. 6000

→ Simple interest = Rs. 1200

Simple interest = (Principal × Time × Rate of interest)/100

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→ 1200 = (6000 × 4× Rate of interset)/100

Rate of interest = 5% p.a.

Now,

Increase rate of interest = 5% p.a. + 2% p.a. =

7% p.a

Time = 5 years

→ Simple interest = (6000 × 5 × 7)/100

Simple interest = 2100

Amount = Principal + Simple interest

→ Amount = Rs. 6000 + Rs. 2100 = Rs. 8100

Step-by-step explanation:

hope it's helps you.