ICSE Class 6 Mathematics - Ratio and Proportion - Test 3 (Advanced)
1. Simplify the ratio 18:24.
A. 4:3
B. 6:8
C. 3:4
2. There are 24 mangoes and 36 oranges. What is the ratio of mangoes to oranges in simplest form?
A. 2:3
B. 3:2
C. 4:6
3. In a class, there are 15 boys and 10 girls. What is the ratio of girls to total students?
A. 3:5
B. 2:5
C. 2:3
4. Which ratio is equivalent to 6:11?
A. 12:11
B. 6:22
C. 18:33
5. Are 8:12 and 10:15 in proportion?
A. Yes
B. No
C. Cannot say
6. Find the missing number: 4:? = 12:21
A. 6
B. 7
C. 9
7. Find the missing number: ?:20 = 3:5
A. 10
B. 15
C. 12
8. ₹84 is divided in the ratio 3:4. What is the first share?
A. ₹36
B. ₹48
C. ₹42
9. If 5 notebooks cost ₹125, what is the cost of 8 notebooks?
A. ₹180
B. ₹200
C. ₹225
10. If 6 pens cost ₹54, what is the cost of 10 pens?
A. ₹80
B. ₹84
C. ₹90
11. Find the ratio of 3 litres to 750 ml in simplest form.
A. 4:1
B. 1:4
C. 3:750
12. Find the ratio of 2 hours to 30 minutes in simplest form.
A. 1:4
B. 4:1
C. 2:30
13. Find the ratio of 1500 g to 2 kg in simplest form.
A. 4:3
B. 15:2
C. 3:4
14. In the proportion 5:8 = 15:24, what is the product of the extremes?
A. 120
B. 64
C. 75
15. Find the missing number: 7:9 = 21:?
A. 24
B. 27
C. 30
16. If 4 oranges cost ₹32, what is the cost of 7 oranges?
A. ₹48
B. ₹52
C. ₹56
17. White balls and black balls are in the ratio 2:7. If there are 35 black balls, how many white balls are there?
A. 10
B. 14
C. 20
18. Red beads and green beads are in the ratio 5:4. If there are 72 beads in all, how many red beads are there?
A. 32
B. 40
C. 45
19. Which pair of ratios forms a proportion?
A. 9:12 and 12:15
B. 6:8 and 9:15
C. 9:12 and 15:20
20. Are 6:10 and 9:15 in proportion?
A. Yes
B. No
C. Cannot say