The pie-chart shows the data of sales (in percentage) of a company in four quarters. Study the given pie-chart and answer the question that follows.

If the total production in a year is 4200 units, then the difference in sales in the 2nd and 4th quarters is (in units):

Correct option is D

Given:

Total production in a year = 4200 units

Sales in 2nd Quarter = 25%

Sales in 4th Quarter = 30%

Formula Used:

The sales for each quarter are calculated as:

​$$\text{Sales} = \left( \frac{\text{Percentage share}}{100} \right) \times \text{Total production}$$​

Solution:

Sales in 2nd Quarter: $$\frac{25}{100} \times 4200 = 1050 \text{ units}$$​

Sales in 4th Quarter:$$\frac{30}{100} \times 4200 = 1260 \text{ units}$$​

Difference: 1260 − 1050 = 210 units

Thus, option (d) is right answer.