Math – Class 9 | NCERT

Question 9: A river 3m deep and 40m wide is flowing at the rate of 2km per hour. How much water will fall into the sea in a minute? Question 8 Ex: 13.6 | Question 1

Question 8: A solid cube of side 12 cm is cut into eight cubes of equal volume. What will be the side of the new cube? Also, find the ratio between their surface areas. Question 7 Question 9

Question 7: A godown measures 40 m × 25 m × 15 m. Find the maximum number of wooden crates each measuring 1.5 m × 1.25 m × 0.5 m that can be stored in the godown. Question 6 Question…

Question 6: A village, having a population of 4000, requires 150 litres of water per head per day. It has a tank measuring 20m×15m×6m. For how many days will the water of this tank last? Question 5 Question 7

Question 5: The capacity of a cuboidal tank is 50000 litres of water. Find the breadth of the tank, if its length and depth are respectively 2.5 m and 10 m. Question 4 Question 6

Question 4: Find the cost of digging a cuboidal pit 8 m long, 6 m broad and 3 m deep at the rate of Rs. 30 per m³. Question 3 Question 5

Question 3: A cuboidal vessel is 10 m long and 8 m wide. How high must it be made to hold 380 cubic metres of a liquid? Question 2 Question 4

Question 2: A cuboidal water tank is 6 m long, 5 m wide and 4.5 m deep. How many litres of water can it hold? (1 m³ = 1000 l) Question 1 Question 3