SSC Saathi SSC Saathi

SSC Maths questions with answers

25 SSC-style Maths multiple-choice questions for CGL, CHSL and similar exams, each in English and Hindi. Try a question first, then tap Show answer for the correct option and a short explanation. They come from SSC Saathi's free 95-question practice set — a warm-up and self-check, not a full test series.

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25 Maths questions · English & हिंदी

1. If a shopkeeper sells an item for ₹480 at a 20% profit, what was the cost price?

यदि दुकानदार किसी वस्तु को ₹480 में 20% लाभ पर बेचता है, तो क्रय मूल्य क्या था?

  1. A₹380
  2. B₹400
  3. C₹420
  4. D₹440
Show answer
Answer: B. ₹400

CP = SP × 100/120 = 480 × 100/120 = ₹400.

क्रय मूल्य = विक्रय मूल्य × 100/120 = 480 × 100/120 = ₹400।

2. The average of 5 consecutive numbers is 15. What is the largest number?

5 क्रमागत संख्याओं का औसत 15 है। सबसे बड़ी संख्या क्या है?

  1. A16
  2. B17
  3. C18
  4. D19
Show answer
Answer: B. 17

The middle number is 15, so numbers are 13,14,15,16,17. Largest = 17.

बीच की संख्या 15 है, तो संख्याएँ 13,14,15,16,17 हैं। सबसे बड़ी = 17।

3. A train 150 m long crosses a pole in 15 seconds. Its speed is:

150 मीटर लंबी रेलगाड़ी एक खंभे को 15 सेकंड में पार करती है। इसकी गति है:

  1. A36 km/h36 किमी/घं
  2. B40 km/h40 किमी/घं
  3. C45 km/h45 किमी/घं
  4. D54 km/h54 किमी/घं
Show answer
Answer: A. 36 km/h (36 किमी/घं)

Speed = 150/15 = 10 m/s = 10 × 18/5 = 36 km/h.

गति = 150/15 = 10 मी/से = 10 × 18/5 = 36 किमी/घं।

4. What is the simple interest on ₹5,000 at 8% per annum for 3 years?

₹5,000 पर 8% वार्षिक दर से 3 वर्ष का साधारण ब्याज क्या होगा?

  1. A₹1,000
  2. B₹1,200
  3. C₹1,400
  4. D₹1,600
Show answer
Answer: B. ₹1,200

SI = P×R×T/100 = 5000×8×3/100 = ₹1,200.

साधारण ब्याज = मूलधन×दर×समय/100 = 5000×8×3/100 = ₹1,200।

5. If 12 men can do a work in 10 days, how many days will 15 men take?

यदि 12 आदमी एक काम 10 दिन में करते हैं, तो 15 आदमी कितने दिन लेंगे?

  1. A6 days6 दिन
  2. B8 days8 दिन
  3. C9 days9 दिन
  4. D12 days12 दिन
Show answer
Answer: B. 8 days (8 दिन)

M1×D1 = M2×D2 → 12×10 = 15×D → D = 8 days.

आदमी×दिन बराबर होता है → 12×10 = 15×D → D = 8 दिन।

6. What is 25% of 40% of 200?

200 का 40% का 25% कितना है?

  1. A15
  2. B20
  3. C25
  4. D30
Show answer
Answer: B. 20

40% of 200 = 80; 25% of 80 = 20.

200 का 40% = 80; 80 का 25% = 20।

7. The ratio of two numbers is 3:5 and their sum is 64. The smaller number is:

दो संख्याओं का अनुपात 3:5 है और उनका योग 64 है। छोटी संख्या है:

  1. A24
  2. B26
  3. C28
  4. D30
Show answer
Answer: A. 24

3x + 5x = 64 → x = 8. Smaller = 3×8 = 24.

3x + 5x = 64 → x = 8। छोटी संख्या = 3×8 = 24।

8. The compound interest on ₹1,000 at 10% per annum for 2 years is:

₹1,000 पर 10% वार्षिक दर से 2 वर्ष का चक्रवृद्धि ब्याज है:

  1. A₹200
  2. B₹210
  3. C₹220
  4. D₹240
Show answer
Answer: B. ₹210

A = 1000(1.1)² = 1210; CI = 1210 − 1000 = ₹210.

मिश्रधन = 1000(1.1)² = 1210; चक्रवृद्धि ब्याज = 1210 − 1000 = ₹210।

9. The area of a circle with radius 7 cm is: (π = 22/7)

7 सेमी त्रिज्या वाले वृत्त का क्षेत्रफल है: (π = 22/7)

  1. A154 cm²154 सेमी²
  2. B144 cm²144 सेमी²
  3. C164 cm²164 सेमी²
  4. D176 cm²176 सेमी²
Show answer
Answer: A. 154 cm² (154 सेमी²)

Area = πr² = (22/7)×7×7 = 154 cm².

क्षेत्रफल = πr² = (22/7)×7×7 = 154 सेमी²।

10. A number is increased by 20% and then decreased by 20%. The net change is:

एक संख्या को 20% बढ़ाया गया फिर 20% घटाया गया। शुद्ध परिवर्तन क्या है?

  1. ANo changeकोई परिवर्तन नहीं
  2. B4% decrease4% कमी
  3. C4% increase4% वृद्धि
  4. D2% decrease2% कमी
Show answer
Answer: B. 4% decrease (4% कमी)

Net = −(20×20)/100 = −4%, i.e. a 4% decrease.

शुद्ध परिवर्तन = −(20×20)/100 = −4%, यानी 4% की कमी।

11. If the perimeter of a square is 48 cm, its area is:

यदि एक वर्ग का परिमाप 48 सेमी है, तो उसका क्षेत्रफल है:

  1. A100 cm²100 सेमी²
  2. B121 cm²121 सेमी²
  3. C144 cm²144 सेमी²
  4. D169 cm²169 सेमी²
Show answer
Answer: C. 144 cm² (144 सेमी²)

Side = 48/4 = 12 cm; Area = 12² = 144 cm².

भुजा = 48/4 = 12 सेमी; क्षेत्रफल = 12² = 144 सेमी²।

12. The LCM of 12 and 18 is:

12 और 18 का लघुत्तम समापवर्त्य (LCM) है:

  1. A24
  2. B36
  3. C48
  4. D72
Show answer
Answer: B. 36

12 = 2²×3, 18 = 2×3². LCM = 2²×3² = 36.

12 = 2²×3, 18 = 2×3²। LCM = 2²×3² = 36।

13. A man buys an article for ₹250 and sells it for ₹200. His loss percent is:

एक व्यक्ति ₹250 में वस्तु खरीदकर ₹200 में बेचता है। हानि प्रतिशत है:

  1. A15%
  2. B20%
  3. C25%
  4. D30%
Show answer
Answer: B. 20%

Loss = 50; Loss% = 50/250 × 100 = 20%.

हानि = 50; हानि% = 50/250 × 100 = 20%।

14. The average of first 10 natural numbers is:

पहली 10 प्राकृत संख्याओं का औसत है:

  1. A5
  2. B5.5
  3. C6
  4. D6.5
Show answer
Answer: B. 5.5

Sum = 55; Average = 55/10 = 5.5.

योग = 55; औसत = 55/10 = 5.5।

15. If x + 1/x = 3, then x² + 1/x² is:

यदि x + 1/x = 3 है, तो x² + 1/x² का मान है:

  1. A5
  2. B7
  3. C9
  4. D11
Show answer
Answer: B. 7

x² + 1/x² = (x + 1/x)² − 2 = 9 − 2 = 7.

x² + 1/x² = (x + 1/x)² − 2 = 9 − 2 = 7।

16. Two pipes fill a tank in 12 and 24 hours. Together they fill it in:

दो नल एक टंकी को 12 और 24 घंटे में भरते हैं। साथ मिलकर वे भरेंगे:

  1. A6 hours6 घंटे
  2. B8 hours8 घंटे
  3. C9 hours9 घंटे
  4. D10 hours10 घंटे
Show answer
Answer: B. 8 hours (8 घंटे)

1/12 + 1/24 = 3/24 = 1/8 → 8 hours.

1/12 + 1/24 = 3/24 = 1/8 → 8 घंटे।

17. The value of √1296 is:

√1296 का मान है:

  1. A34
  2. B36
  3. C38
  4. D42
Show answer
Answer: B. 36

36 × 36 = 1296, so √1296 = 36.

36 × 36 = 1296, इसलिए √1296 = 36।

18. A sum doubles itself in 8 years at simple interest. The rate is:

साधारण ब्याज पर कोई राशि 8 वर्ष में दोगुनी हो जाती है। दर क्या है?

  1. A10%
  2. B12.5%
  3. C15%
  4. D20%
Show answer
Answer: B. 12.5%

SI = P in 8 years → R = 100/8 = 12.5%.

8 वर्ष में ब्याज = मूलधन → दर = 100/8 = 12.5%।

19. The angles of a triangle are in ratio 1:2:3. The largest angle is:

एक त्रिभुज के कोण 1:2:3 के अनुपात में हैं। सबसे बड़ा कोण है:

  1. A60°
  2. B75°
  3. C90°
  4. D120°
Show answer
Answer: C. 90°

x + 2x + 3x = 180 → x = 30. Largest = 3×30 = 90°.

x + 2x + 3x = 180 → x = 30। सबसे बड़ा = 3×30 = 90°।

20. A boat goes 20 km downstream in 2 hours. If the stream is 2 km/h, the speed of the boat in still water is:

एक नाव धारा के साथ 20 किमी 2 घंटे में जाती है। यदि धारा 2 किमी/घं है, तो शांत जल में नाव की गति है:

  1. A6 km/h6 किमी/घं
  2. B8 km/h8 किमी/घं
  3. C10 km/h10 किमी/घं
  4. D12 km/h12 किमी/घं
Show answer
Answer: B. 8 km/h (8 किमी/घं)

Downstream speed = 20/2 = 10 km/h = boat + 2 → boat = 8 km/h.

धारा के साथ गति = 20/2 = 10 किमी/घं = नाव + 2 → नाव = 8 किमी/घं।

21. What is the value of 15% of 300 + 20% of 150?

300 का 15% + 150 का 20% का मान क्या है?

  1. A65
  2. B70
  3. C75
  4. D80
Show answer
Answer: C. 75

45 + 30 = 75.

45 + 30 = 75।

22. The HCF of 24 and 36 is:

24 और 36 का महत्तम समापवर्तक (HCF) है:

  1. A6
  2. B8
  3. C12
  4. D18
Show answer
Answer: C. 12

24 = 2³×3, 36 = 2²×3². HCF = 2²×3 = 12.

24 = 2³×3, 36 = 2²×3²। HCF = 2²×3 = 12।

23. A discount of 25% on marked price ₹800 gives selling price:

₹800 अंकित मूल्य पर 25% छूट देने से विक्रय मूल्य होगा:

  1. A₹560
  2. B₹600
  3. C₹640
  4. D₹660
Show answer
Answer: B. ₹600

SP = 800 × 75/100 = ₹600.

विक्रय मूल्य = 800 × 75/100 = ₹600।

24. If 3x − 7 = 14, then x equals:

यदि 3x − 7 = 14 है, तो x का मान है:

  1. A5
  2. B6
  3. C7
  4. D8
Show answer
Answer: C. 7

3x = 21 → x = 7.

3x = 21 → x = 7।

25. The volume of a cube of side 5 cm is:

5 सेमी भुजा वाले घन का आयतन है:

  1. A100 cm³100 सेमी³
  2. B115 cm³115 सेमी³
  3. C125 cm³125 सेमी³
  4. D150 cm³150 सेमी³
Show answer
Answer: C. 125 cm³ (125 सेमी³)

Volume = side³ = 5³ = 125 cm³.

आयतन = भुजा³ = 5³ = 125 सेमी³।

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In the SSC Saathi app you get these questions shuffled in 10-question sets, a Daily Quiz that is the same for everyone each day, and a 25-question mock test in 25 minutes with −0.25 negative marking. Wrong answers go to a Review Mistakes list. It is free, runs in the browser, and switches between English and Hindi at any time. More on how it works: About SSC Saathi.

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