Question

Find the sum of the money that amounts to rs 5850 in sex years at 5% per annuam

Answer 1

Amount = Rs. 5850

Time (T) = 6 years

Rate (R) = 5% p.a.

Sum = Principal (P)

Let the Principal be Rs. x

A/Q.

Amount = Principal + S.I.

5850 = x + (PRT / 100)

⇒ 5850 = x + (x × 5 × 6 / 100)

⇒ 5850 = x + (30x / 100)

⇒ 5850 = x + (3x / 10)

⇒ 5850 = (10x + 3x) / 10

⇒ 5850 = 13x / 10

⇒ 5850 × 10 / 13 = x

⇒ 450 × 10 = x

⇒ 4500 = x


Hence, the sum is 4500.

Hope it helps

Answer 2

$\huge\sf{Answer:-}$

To this question

Using Formula:-

[A = P + SI]

=5850=y+PRT/100

=5850=y+y×5×6×100

=5850=y+30y/100

=5850=y(10y+3y)/10

=5850×10=y

=4500=y