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CSS - PMS - CCE - PCS - Mathematics

CSS - PMS - CCE - PCS - Mathematics MCQs With Answers

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CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
What is the subtriplicate ratio of 27:216?
A. 1:1
B. 3:6
C. 216:27
D. 27:216
Correct Answer: B
Subtriplicate ratio means cube roots. ∛27:∛216 = 3:6 Answer = 3:6
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
What is the subduplicate ratio of 16:64?
A. 16:64
B. 64:16
C. 4:8
D. 1:1
Correct Answer: C
Subduplicate ratio means square roots. √16:√64 = 4:8 Answer = 4:8
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
What is the triplicate ratio of 4:8?
A. 8:4
B. 64:512
C. 4:8
D. 1:1
Correct Answer: B
Triplicate ratio means cube both terms. 4³:8³ = 64:512 Answer = 64:512
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
What is the duplicate ratio of 3:7?
A. 1:1
B. 3:7
C. 7:3
D. 9:49
Correct Answer: D
Duplicate ratio means square both terms. 3²:7² = 9:49 Answer = 9:49
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
Find the compound ratio of 6:10 and 11:12.
A. 17:22
B. 11:20
C. 66:120
D. 72:110
Correct Answer: B
Compound ratio = (6 × 11):(10 × 12) = 66:120 Simplified = 11:20 Answer = 11:20
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
Find the compound ratio of 5:9 and 9:11.
A. 14:20
B. 55:81
C. 5:11
D. 45:99
Correct Answer: C
Compound ratio = (5 × 9):(9 × 11) = 45:99 Simplified = 5:11 Answer = 5:11
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
Find the compound ratio of 4:8 and 7:10.
A. 7:20
B. 11:18
C. 28:80
D. 40:56
Correct Answer: A
Compound ratio = (4 × 7):(8 × 10) = 28:80 Simplified = 7:20 Answer = 7:20
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
Find the compound ratio of 3:7 and 5:9.
A. 8:16
B. 15:63
C. 27:35
D. 5:21
Correct Answer: D
Compound ratio = (3 × 5):(7 × 9) = 15:63 Simplified = 5:21 Answer = 5:21
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
Find the mean proportional between 60 and 135.
A. 90
B. 97.5
C. 195
D. 75
Correct Answer: A
Let x be the mean proportional. 60:x = x:135 x² = 60 × 135 = 8100 x = √8100 = 90 Answer = 90
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
Find the mean proportional between 56 and 126.
A. 91
B. 182
C. 84
D. 70
Correct Answer: C
Let x be the mean proportional. 56:x = x:126 x² = 56 × 126 = 7056 x = √7056 = 84 Answer = 84
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
Find the mean proportional between 52 and 117.
A. 78
B. 169
C. 84.5
D. 65
Correct Answer: A
Let x be the mean proportional. 52:x = x:117 x² = 52 × 117 = 6084 x = √6084 = 78 Answer = 78
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
Find the mean proportional between 48 and 108.
A. 60
B. 78
C. 72
D. 156
Correct Answer: C
Let x be the mean proportional. 48:x = x:108 x² = 48 × 108 = 5184 x = √5184 = 72 Answer = 72
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
Find the fourth proportional to 7, 10, and 13.
A. 23
B. 18.57
C. 9.1
D. 70
Correct Answer: B
For fourth proportional d: 7:10 = 13:d 7d = 10 × 13 d = (10 × 13) ÷ 7 = 18.57 Answer = 18.57
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
Find the fourth proportional to 6, 9, and 12.
A. 8
B. 54
C. 21
D. 18
Correct Answer: D
For fourth proportional d: 6:9 = 12:d 6d = 9 × 12 d = (9 × 12) ÷ 6 = 18 Answer = 18
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
Find the fourth proportional to 5, 8, and 11.
A. 17.6
B. 19
C. 40
D. 6.88
Correct Answer: A
For fourth proportional d: 5:8 = 11:d 5d = 8 × 11 d = (8 × 11) ÷ 5 = 17.6 Answer = 17.6
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
Find the fourth proportional to 4, 7, and 10.
A. 17
B. 17.5
C. 28
D. 5.71
Correct Answer: B
For fourth proportional d: 4:7 = 10:d 4d = 7 × 10 d = (7 × 10) ÷ 4 = 17.5 Answer = 17.5
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
Find the third proportional to 7 and 11.
A. 77
B. 121
C. 17.29
D. 9
Correct Answer: C
If a:b = b:c, c is the third proportional. 7:11 = 11:c 7c = 11² = 121 c = 121 ÷ 7 = 17.29 Answer = 17.29
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
Find the third proportional to 6 and 10.
A. 100
B. 60
C. 8
D. 16.67
Correct Answer: D
If a:b = b:c, c is the third proportional. 6:10 = 10:c 6c = 10² = 100 c = 100 ÷ 6 = 16.67 Answer = 16.67
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
Find the third proportional to 5 and 9.
A. 81
B. 7
C. 16.2
D. 45
Correct Answer: C
If a:b = b:c, c is the third proportional. 5:9 = 9:c 5c = 9² = 81 c = 81 ÷ 5 = 16.2 Answer = 16.2
CSS - PMS - CCE - PCS - Mathematics Ratio & Proportion
Find the third proportional to 4 and 8.
A. 16
B. 6
C. 32
D. 64
Correct Answer: A
If a:b = b:c, c is the third proportional. 4:8 = 8:c 4c = 8² = 64 c = 64 ÷ 4 = 16 Answer = 16
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