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A shopkeeper by selling 20 Timex watches, earns a profit equal to the selling price of 4 Timex watches. His profit percentage is:

  1. A
    20 percent
  2. B
    25 percent
  3. C
    40 percent
  4. D
    15 percent

Solution & Step-by-step Explanation

Let the Selling Price (SP) of 1 watch be Rs 1.
Then, the Selling Price of 20 watches is:

SP of 20 watches=Rs 20
The profit earned is equal to the selling price of 4 watches:

Profit=SP of 4 watches=Rs 4
We know that:

Cost Price (CP)=Selling Price (SP)−Profit
CP of 20 watches=20−4=Rs 16
Now, we calculate the profit percentage based on the Cost Price:

Profit Percentage=(
CP
Profit
​
)×100
Profit Percentage=(
16
4
​
)×100=
4
1
​
×100=25%

Practice this question

Try it yourself before checking the explanation above.

A shopkeeper by selling 20 Timex watches, earns a profit equal to the selling price of 4 Timex watches. His profit percentage is:
A
20 percent
B
25 percent
C
40 percent
D
15 percent

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