Question

During big billion day sale, the laptop was ₹70,000 but now its value is increased by 8 %. The current value of laptop is

• A. ₹75600
• B. ₹79000
• C. ₹85600

Answer 1

The correct option is A ₹75600

By formula, $Newvalue=previousvalue\times \left(\frac{100+\%increase}{100}\right)$
According to question,
previous value = ₹70,000,
% increase = 8%
$\Rightarrow Newvalue=70,000\times \left(\frac{100+8}{100}\right)$

$=70,000\times \frac{108}{100}=700\times 108$
$\Rightarrow Newvalue=75,600$
$\therefore$ The current value of laptop is ₹75,600

Alternatively,
Current value = previous value + 8% of previous value

Current value $=70,000+8\%of70,000=70,000+\frac{8}{100}\times 70,000=70,000+5600=75,600$

$\therefore$ The current value of laptop is ₹75,600