If a material is sold for Rs.34.80, there is a loss of 25%. Find out the cost price of the material?
Rs.46.40
Rs.44
Rs.42
Rs.47.20
Explanation:
SP = 34.80
Loss = 25%
CP = $\dfrac{100}{(100 - Loss\%)} \times SP$ = $\dfrac{100}{(100 - 25)} \times 34.80$ = $\dfrac{100}{75}$ x 34.80
= $\dfrac{4 \times 34.80}{3}$ = 4 x 11.60 = 46.40