Proportional Reasoning — Practice

Question 1

Which of these is a true proportion?

Accepted Answer

21 : 6 :: 35 : 10

Question 2

Acid and water are mixed in the ratio 1 : 5. In 240 mL of solution, the amount of acid is:

Accepted Answer

40 mL

Question 3

₹4,500 is divided between two people in the ratio 2 : 3. The larger share is:

Accepted Answer

₹2,700

Question 4

A pair of oxen ploughs an acre in 6 hours. A tractor is 4 times faster. How long does the tractor take per acre?

Accepted Answer

1.5 hours

Question 5

Three buses seating 54 each carried a school group. This year 204 people are going. How many buses are needed?

Accepted Answer

4

Question 6

One bucket of paint has red and yellow in the ratio 3 : 5. A whole extra bucket of yellow is added. The new ratio of red to yellow is:

Accepted Answer

3 : 13

Question 7

A tap fills a 500 mL mug in 15 seconds. How many seconds does it take to fill a 10-litre bucket?

Accepted Answer

300

Question 8

Harmain is 1 year old and her brother is 5. In how many years will the ratio of their ages be 1 : 2?

Accepted Answer

3

Practice — Proportional Reasoning