Question

The value of a machine depreciates at the rate of 10% of its value at the begining of that year .its value when new is rs 750 ,find its value when it is 2 years ago

Answer 1

first the formula is V=P(1-r/100)


p=750

@=10%

n=2

$750(1 - 10\div 100) {}^{2}$

$750 \times \frac{9}{10} \times \frac{9}{10}$
$60750 \div 100$
$607.5$