Question

the simple interest on a sum of money at the end of 3 years is 3/16 of the sum itself . what rate per cent was charged ?​

Answer 1

Step-by-step explanation:

Let the sum (p) = x

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$\huge\tt\fcolorbox{blue}{bl}{Given}$

Time (t) = 3years

SI = 3/16 of sum = 3x/16

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$\huge\tt\fcolorbox{red}{re}{Find out}$

Rate (r)= ?

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$\huge\tt\fcolorbox{brown}{br}{Formula used}$

$si \: = \frac{p \times r \times t}{100}$

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solution:-

$si \: = \frac{p \times r \times t}{100} \\ \frac{3x}{16} = \frac{x \times r \times 3}{100} \\ \frac{3x}{16} = \frac{3xr}{100} \\ \: by \: crossmultiplication \\ 3x \times 100 = 3xr \times 16 \\ 3xr \times 16 = 3x \times 100 \\ r = \frac{3x \times 100}{16 \times 3x} \\ r = \frac{100}{16} \\ r = \frac{25}{4} = 6 \frac{1}{4} \: \: \: or \: \: \: 6.25$

Answer 2

Answer:

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