Siri has enough money to buy 5 kg of potatoes at the price of Rs 8 per kg. How much can she buy for the same amount if the price is increased to Rs 10 per kg?

A school wants to spend Rs 6000 to purchase books. Using this data, fill the following table.

Take a squared paper and arrange 48 squares in different number of rows as shown below:

What do you observe? As R increases, C decreases

(i) Is R₁ : R₂ = C₂ : C₁?

(ii) Is R₃ : R₄ = C₄ : C₃?

(iii) Is R and C inversely proportional to each other?

(iv) Do this activity with 36 squares.

A camp has food stock for 500 people for 70 days. If 200 more people join the camp, how long will the stock last?

36 men can do a piece of work in 12 days. In how many days 9 men can do the same work?