Study the given bar-graph and answer the question that follows. The bar-graph given below shows the total selling price (in ₹) and the total cost price (in ₹) of five different flowers in a flower shop on a particular day.

The number of roses, lilies and sunflowers sold from that shop on that day were 7, 5, and 10, respectively. Find the sum of the profits earned by selling a rose, a lily and a sunflower on that day.

₹100

The number of roses, lilies and sunflowers sold from that shop on that day were 7, 5, and 10, respectively

Profit = Selling price - Cost price

Sum of profit earned by selling a rose , a lily and a sunflower on that day

= \(\frac{800 - 450}{7}\) + \(\frac{720 - 540}{7}\) + \(\frac{630 - 490}{7}\) 

= \(\frac{350}{7}\) + \(\frac{180}{5}\) + \(\frac{140}{10}\)

= 50 + 36 + 14

= 100