Question

Question 93

If the price of petrol, diesel and LPG is slashed as follows

$\begin{array}{cccc}\text{Fuel}& \text{Old price/litre (in Rs)}& \text{New price/litre(in Rs)}& \%\text{Decrease}\\ \text{Petrol/L}& 45.62& 40.62& \_\_\_\\ \text{Diesel/L}& 32.86& 30.86& \_\_\_\\ \text{LPG/14.2 kg}& 304.70& 279.70& \_\_\_\end{array}$
Complete the above table.

Answer 1

For Petrol/L,
Old price = Rs. 45.62
New price = Rs. 40.62
Decrement in price = Rs. 45.62 - Rs. 40.62 = Rs. 5
$\therefore$ Decrease % = $\frac{5}{45.62}\times 100=\frac{50000}{4562}=10.96\%$
For Diesel/L.
Old price = Rs. 32.86
New price = Rs. 30.86
Decrement in price $=Rs.32.86-Rs.30.86=Rs.2\therefore Decrease\%=\frac{2}{32.86}\times 100=\frac{200}{32.86}=6.0869\approx 6.09$
For LPG,
Old price = Rs. 304.70
New price = Rs. 279.70
Decrement in price = Rs. 304.70 - Rs. 279.70 = Rs. 25
$\therefore$ Decrease $\%=\frac{25}{304.70}\times 100=\frac{2500}{304.70}=8.20\%$