SSC CGL Decimals MCQs with Answers & Explanations 2026
Practice SSC CGL Decimals MCQs with detailed answers, explanations, shortcut tricks, and exam-oriented questions based on the latest SSC CGL pattern.
1. What is the value of 0.75 × 0.4?
A. 0.03 B. 0.3
C. 3 D. 0.12
Correct Answer: B
Explanation:
75 × 4 = 300
Total decimal places = 2 + 1 = 3
⇒ 300/1000 = 0.3
Shortcut Trick: Ignore decimals first, then place decimal digits.
2. Which of the following is the largest?
A. 0.909 B. 0.99
C. 0.9099 D. 0.9009
Correct Answer: B
Explanation:
0.99 = 0.9900,
which is greater than all others.
Shortcut Trick: Equalise decimal places and compare digit by digit.
3. 4.5 ÷ 0.15 = ?
A. 3 B. 30
C. 300 D. 0.3
Correct Answer: B
Explanation:
4.5 ÷ 0.15
= 450 ÷ 15
= 30
Shortcut Trick: Multiply both numbers by 100 to remove decimals.
SSC CGL Decimals MCQs
4. Express 0.125 as a fraction.
A. ¼ B. 1/8
C. 1/16 D. 3/8
Correct Answer: B
Explanation:
0.125 = 125/1000 = 1/8
Shortcut Trick: Remember common decimal-fraction equivalents.
5. What is 12.5% of 0.8?
A. 0.01 B. 0.1
C. 1 D. 10
Correct Answer: B
Explanation:
12.5% = 1/8
0.8 × 1/8 = 0.1
Shortcut Trick: Convert 12.5% directly into 1/8.
6. The value of 3.6 + 0.36 + 0.036 is:
A. 3.996 B. 3.96
C. 39.96 D. 4.006
Correct Answer: A
Explanation:
3.6 + 0.36 = 3.96
3.96 + 0.036 = 3.996
Shortcut Trick: Align decimal points vertically.
7. Which decimal is equal to 7/20?
A. 0.25 B. 0.35
C. 0.45 D. 0.75
Correct Answer: B
Explanation:
7 ÷ 20 = 0.35
Shortcut Trick: Multiply the numerator and denominator by 5.
8. 0.04 × 0.5 = ?
A. 0.2 B. 0.02
C. 0.002 D. 2
Correct Answer: B
Explanation:
4 × 5 = 20
Three decimal places total.
⇒ 0.020 = 0.02
Shortcut Trick: Multiplying by 0.5 means taking half.
9. The decimal representation of 5/8 is:
A. 0.625 B. 0.825
C. 0.525 D. 0.725
Correct Answer: A
Explanation:
5 ÷ 8 = 0.625
Shortcut Trick: Memorise common SSC fractions.
SSC CGL Decimals MCQs
10. What is the value of 0.999 + 0.001?
A. 1 B. 0.1
C. 10 D. 0.9991
Correct Answer: A
Explanation:
0.999 + 0.001 = 1.000
Shortcut Trick: Observe complementary decimals.
11. What is the value of 2.5 × 1.2?
A. 2.0 B. 3.0
C. 3.5 D. 4.0
Correct Answer: B. 3.0
Explanation:
2.5 × 1.2 = (25 × 12)/100 = 300/100 = 3.0
Shortcut Trick:
Ignore decimals first: 25 × 12 = 300. Then place two decimal digits.
12. Arrange the following in ascending order: 0.7, 0.07, 0.707, 0.077
A. 0.07, 0.077, 0.7, 0.707
B. 0.077, 0.07, 0.707, 0.7
C. 0.07, 0.7, 0.077, 0.707
D. 0.707, 0.7, 0.077, 0.07
Correct Answer: A
Explanation:
Write equal decimal places:
0.070, 0.077, 0.700, 0.707
Ascending order:
0.07 < 0.077 < 0.7 < 0.707
Shortcut Trick:
Equalise decimal places before comparing.
Difficulty Level: Easy
13. The value of 0.625 ÷ 0.25 is:
A. 2.5 B. 25
C. 0.25 D. 1.25
Correct Answer: A. 2.5
Explanation:
0.625 ÷ 0.25 = 625/250 = 2.5
Shortcut Trick:
Multiply both numbers by 1000.
Difficulty Level: Medium
14. Convert 3.75 into a mixed fraction.
A. 3¼ B. 3½
C. 3¾ D. 4¼
Correct Answer: C. 3¾
Explanation:
3.75 = 3 + 75/100
= 3 + 3/4
= 3¾
Shortcut Trick:
75/100 always reduces to 3/4.
15. What is 0.008 × 1000?
A. 0.8 B. 8
C. 80 D. 800
Correct Answer: B. 8
Explanation:
Multiplying by 1000 shifts the decimal point three places to the right.
0.008 → 8
Shortcut Trick:
Count the zeros in the multiplier.
16. Which fraction is equivalent to 0.875?
A. 5/8 B. 7/8
C. 3/8 D. 9/8
Correct Answer: B. 7/8
Explanation:
0.875 = 875/1000
= 7/8
Shortcut Trick:
Remember: 0.875 = 87.5% = 7/8.
17. The difference between 5.03 and 4.987 is:
A. 0.043 B. 0.053
C. 0.143 D. 1.043
Correct Answer: A. 0.043
Explanation:
5.030 − 4.987 = 0.043
Shortcut Trick:
Align decimal points carefully.
18. A shopkeeper bought an item for ₹12.75 and sold it for ₹15.25. What is the profit?
A. ₹1.50 B. ₹2.25
C. ₹2.50 D. ₹3.50
Correct Answer: C. ₹2.50
Explanation:
Profit = SP − CP
= 15.25 − 12.75
= ₹2.50
Shortcut Trick:
Subtract rupees and paise separately.
19. What is the value of 0.04²?
A. 0.0016 B. 0.016
C. 0.16 D. 0.00016
Correct Answer: A. 0.0016
Explanation:
0.04 × 0.04
= 4 × 4 = 16
Total decimal places = 4
= 0.0016
Shortcut Trick:
Square the number, ignoring decimals, then place double decimal digits.
20. If x = 0.4 and y = 0.04, then x ÷ y = ?
A. 1 B. 10
C. 100 D. 0.1
Correct Answer: B. 10
Explanation:
0.4 ÷ 0.04
= 40 ÷ 4
= 10
Shortcut Trick:
Move both decimals equally to remove decimal points.
SSC CGL Quick Decimal Facts
SSC CGL Decimals MCQs
21. What is the decimal equivalent of 2/11?
A. 0.1818… B. 0.2222…
C. 0.2020… D. 0.2121…
Correct Answer: A. 0.1818…
Explanation:
2 ÷ 11 = 0.181818…
Shortcut Trick:
Remember:
• 1/11 = 0.0909…
• 2/11 = 0.1818…
• 3/11 = 0.2727…
22. The value of 0.333… × 3 is:
A. 0.999… B. 1
C. Both A and B D. 3
Correct Answer: C. Both A and B
Explanation:
0.333… = 1/3
Therefore,
(1/3) × 3 = 1
Also 0.999… = 1
Shortcut Trick:
SSC frequently asks conceptual recurring-decimal questions.
23. Approximate the value of 19.98 × 5.02.
A. 90 B. 95
C. 100 D. 105
Correct Answer: C. 100
Explanation:
19.98 ≈ 20
5.02 ≈ 5
20 × 5 = 100
Actual value = 100.2996
Shortcut Trick:
Round to nearby integers for approximation questions.
24. Which is greater?
A. 0.4999 B. 0.5
C. Equal D. Cannot be determined
Correct Answer: B. 0.5
Explanation:
0.5000 > 0.4999
Difference = 0.0001
Shortcut Trick:
Add trailing zeros and compare.
25. If 0.125 × x = 2.5, then x = ?
A. 10 B. 15
C. 20 D. 25
Correct Answer: C. 20
Explanation:
x = 2.5 ÷ 0.125
= 20
Shortcut Trick:
0.125 = 1/8
So x = 2.5 × 8 = 20
26. What is the value of 0.777… as a fraction?
A. 7/9 B. 7/10
C. 77/100 D. 14/18
Correct Answer: A. 7/9
Explanation:
Let x = 0.777…
10x = 7.777…
Subtract:
10x − x = 7
9x = 7
x = 7/9
Shortcut Trick:
Single repeating digit n = n/9
27. The value of 4.999 + 0.001 is:
A. 4.99 B. 5
C. 5.001 D. 4.9
Correct Answer: B. 5
Explanation:
4.999 + 0.001 = 5.000
Shortcut Trick:
Complementary decimals sum to whole numbers.
28. If 12.5% of a number is 8.75, the number is:
A. 60 B. 65
C. 70 D. 75
Correct Answer: C. 70
Explanation:
12.5% = 1/8
Number = 8.75 × 8
= 70
Shortcut Trick:
Whenever 12.5% appears, replace it with 1/8.
Difficulty Level: Medium
SSC CGL Decimals MCQs
29. Evaluate: 0.25 + 0.025 + 0.0025
A. 0.2525 B. 0.2775
C. 0.2575 D. 0.2755
Correct Answer: B. 0.2775
Explanation:
0.2500
+0.0250
+0.0025
=0.2775
Shortcut Trick:
Write equal decimal places before addition.
Difficulty Level: Easy
30. What is the value of: 0.999 × 0.999 (approximately)
A. 0.998001 B. 0.999001
C. 0.989001 D. 1.000001
Correct Answer: A. 0.998001
Explanation:
999 × 999 = 998001
Total decimal places = 6
Therefore,
0.998001
Shortcut Trick:
Use:
(1 − 0.001)²
= 1 − 0.002 + 0.000001
= 0.998001
Difficulty Level: Hard
SSC Speed Tricks
- 0.125 = 1/8
- 0.25 = 1/4
- 0.375 = 3/8
- 0.625 = 5/8
- 0.875 = 7/8
- 12.5% = 1/8
- 25% = 1/4
- 37.5% = 3/8
- 62.5% = 5/8
- 87.5% = 7/8
YouTube
If you are interested in reading stories, CLICK HERE
