Question

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In what time 5600 amount to 6720 at 8% per annum?​

Answer 1

GIVEN

• Principal, p = ₹ 5600
• Amount, a = ₹ 6720

SOLUTION

We know that

• Simple intrest = Amount - Principal
• S.I = ₹ (6720 - 5600) = ₹ 1120

• Rate of interest p.a ,r = 8%
• Let the time taken is t yrs.

$\: \: \: \: \: \: \: \: \bf \: 1120 = \frac{5600 \times8 \times t }{100} \: \: \: \: \: \: \: \\ \\ \bf \: t = \frac{1120 \times 100}{5600 \times 8} \\ \\ \bf t = \frac{112 \times 10}{56 \times 8} \\ \\ \bf t = \frac{56 \times 20}{56 \times 8} \\ \\ \bf t = \frac{20}{8} \\ \\ \bf t = \frac{5}{2} \\ \\ \bf t = 2.5$

The required time is 2.5 yrs

Answer 2

Step-by-step explanation:

GIVEN

Principal, p = ₹ 5600

Amount, a = ₹ 6720

SOLUTION

We know that