Introduction to Ratio

Q. Two numbers are in ratio 5:6. Sum of both the numbers is 220. What is the difference between the numbers. [ 4 marks ]

Q. $\text{5:6 can also be written as}\frac{6}{5}.$

1. True
2. False

Q. Weight of box A is three times that of box B. Ratio of the weights of box B to that of box A is:

1. 1:3
2. 3:1
3. 2:3
4. 3:2

Q. The fraction $\frac{7}{10}$ indicates 7 parts out of 10.

1. False
2. True

Q. Select the bubbles that do not represent a ratio.

1. 2 km:3 h
2. 5 m:1 h
3. 9 km:1 min
4. 2 books:1 day
5. 10:12
6. 12 kg:75 rupees
7. 1 day:9 rupees
8. 13:17

Q. City A has a population of 54, 000 and city B has a population of 78, 000. What is the ratio of the population of city B to that of city A.

1. 9:13
2. 13:9
3. 15:12
4. 12:15

Q. is a relationship between two numbers, indicating how many times the first number contains the second number.

1. Ratio
2. Average
3. Proportion

Q. Ana threw 5 pebbles in a pond out of 13 she had in her bag. This can be expressed as a .

1. rate
2. ratio
3. fraction

Q. If x : y = 2 : 3, then find the ratio of 5x + 3y to 6x + 9y.

1. 1 : 3
2. 14 : 33
3. 3 : 1
4. 33 : 14

Q. A map has a scale of 1 : 20, 000. A distance of 3 units on the map is equivalent to ____ units in real.

1. 40, 000 units
2. 20, 000 units
3. 60, 000 units
4. 80, 000 units