Question

in what time will rs 1600 amount to rs 1792 at 6 per annum simple interest

Answer 1

Answer:

Interest = Amount - Principle

= 1768 - 1600

= 168

Interest = Principle × Rate of Interest × Time /100

168 = 1600 × 6 × Time / 100

Time = 168/96

= 28×6/(16×6)

= 28/16

= (7×4)/(4×4)

= 7/4

= 1 3/4

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Answer 2

ANSWER:

Given:

• Principal = Rs 1600
• Amount = Rs 1792
• Rate = 6% p.a.

To Find:

• Time

Solution:

We know that,

⇒ Amount = Principal + Simple Interest

So,

⇒ S.I. = 1792 - 1600

⇒ S.I. = Rs 192

Now, we also know that,

⇒ S.I. = P × R × T/100

where P = Principal, R = Rate and T = Time

So,

⇒ 192 = 1600 × 6 × T/100

⇒ 192 = 16 × 6 × T

⇒ 192 = 96T

So,

⇒ T = 192/96

⇒ T = 2years

Therefore, the time taken for Rs 1600 to amount to Rs 1792 at 6% p.a. will be 2years.