Direct Proportionality

A dishwasher uses 65 gallons of water to wash 5 loads of dishes. What is the direct variation equation?

• y=13x

• y=65x

• y=5x

• y=0.7x

Loretta paid $10.72 for 8 cans of cat food. What's the cost for 12 cans of cat food?

• $1.34

• $16.08

• $17.42

• $12.23

You need 2 yards of fabric to cover 3 pillows and 6 yards to cover 9 pillows. How much fabric do you need to cover 15 pillows?

• 10 yards

• 22.5 yards

• 8 yards

Does the table represent a proportional relationship?

• Yes.

• No.

A truck covers a distance of 510 km in 34 litres of diesel. How much distance would it cover in 20 litres of diesel?

• 305 km

• 300 km

• 350 km

• 200 km

Following are the car parking charges near a railway station up to. 4 hours – Rs.60, 8 hours – Rs.100, 12 hours – Rs.140, 24 hours – Rs.180. Check if the parking charges are in direct proportions to the parking time.

• Yes, the parking charges are in direct proportions

• No, the parking charges are not in direct proportions

A machine in a soft drink factory fills 840 bottles in six hours. How many bottles will it fill in five hours?

• 200

• 800

• 700

• 940

In a hostel, 75 students had food provision for 24 days. If 15 students leave the hostel, for how many days would the food provision last?

• 20

• 25

• 55

• 30

In a model of a ship, the mast is 9 cm high, while the mast of the actual ship is 12 m high. If the length of the ship is 28 m, how long is the model ship?

• 23 m

• 41 m

• 21 m

• 47 m

Anju types 540 words during half an hour. How many words would she type in 8 minutes?

• 244

• 144

• 567

• 944