The following bar chart shows the revenue (in thousand rupees) generated from the sale of 5 different objects, Q1 to Q5.

The following bar chart shows the profit percentage gained through the sales of these 5 objects.

Profit percentage = $\frac{Revenue − Cost}{Cost}$ × 100
What is the cost incurred in the procurement and sale of Q1?

₹1,50,000

Profit percentage = $\frac{Revenue − Cost}{Cost}$ × 100

Revenue of Q1 = 180

Profit of Q1 = 20%

20% = $\frac{180000 − Cost}{Cost}$ × 100

0.2 = $\frac{180000 }{Cost}$  - 1

1.2 = $\frac{180000 }{Cost}$

Cost = $\frac{180000 }{1.2}$ = 150000