Here, the S.P is greater than the C.P, and hence there is a profit.
Therefore, profit = S.P – C.P
= 150 – 100
= 50 units.To enable the child with visual impairment to understand the concept, provide with
two groups of beads wherein one contains more number of beads than the other.
Treating the group with more number of beads as the selling price and the one with
less number of beads as the cost price the concept can be taught to the child.
Similarly the concept of loss can also be taught with the same group of beads.
Note : Profit Percentage=PrCofit.P^ ×^100 %