Question

The value of a machine is Rs. $6,250$. It decreases by $10$% during the first year, $20$% during the second year and $30$% during the third year. What will be the value of the machine after $3$ years?

• A. Rs. $2,650$
• B. Rs. $3,050$
• C. Rs. $3,150$
• D. Rs. $3,510$

Answer 1

The correct option is C Rs. $3,150$

Value after $1^{st}$ year $=6250-\frac{10}{100}\times 6250$

$=5625Rs$

Value after $2^{nd}$ year $=5625-\frac{20}{100}\times 5625=\frac{80}{100}\times 5625$

$=4500Rs$

Value after $3^{rd}$ year $=4500-\frac{30}{100}\times 4500=\frac{70}{100}\times 4500$

$=Rs3150$