Question

In the market, Sahil found a shopkeeper selling 2 ½ kg potatoes for Rs.30. Sahil bought 15 kg potatoes from him. What was the cost of 15 kg potatoes?

Answer 1

30÷2.5=12,,,,,12×15=180

Answer 2

Answer:

$45y = 5 - 10 \\ 45y = - 5 \\ y = \frac{ - 5}{45} \\ y = - 9$