Question

in how many year will Rs. 8000 amount to Rs. 9680 at 7% p.a. simple interest​

Answer 1

Answer:

In 3 Years

Step-by-step explanation:

For Ist Year=

8000*9/100=560

For 2nd year=

8000*9/100=560

For 3rd Year=

8000*9/100=560

Therefore 560+560+560=1680

So 8000+1680=9680

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Answer 2

Answer:

Here is your answer

Principal = Rs. 8000

Amount = Rs. 9680

Rate of interest = 7% p.a

Time = ?

Now,

As we know that,

S.I = Amount - Principal

= Rs. 9680 - 8000

= Rs. 1,680

S.I = Rs. 1,680

Now,

As we know the formula,

time = \frac{100 \times si}{p \times r} \\ \\ = \frac{100 \times 1680}{8000 \times 7} \\ \\ = \frac{168}{56} \\ \\ = 3 \: years

Therefore, Time is 3 years.