Introduction: RRB NTPC exam ki preparation kar rahe ho? Toh Mathematics section ko miss mat karna! Maths ke concepts aur formulas agar aapko clear hain, toh ye section aapke liye scoring ban sakta hai. Is blog mein hum aapko 20 most important mathematics questions batayenge jo aapke RRB NTPC exam ke liye bahut zaroori hain. Chaleye shuru karte hain!
1. Question: Agar x = 5 ho, toh (x^2 + 2x + 1) ka value kya hoga?
Answer: 36
2. Question: 2, 4, 6, 8... is sequence ka nth term kya hai?
Answer: 2n
3. Question: Ek rectangle ka length 10 cm aur breadth 5 cm hai. Uska area kya hoga?
Answer: 50 cm²
4. Question: Simple interest ka formula kya hota hai?
Answer: SI = (P × R × T) / 100
5. Question: 12 ka square root kya hai?
Answer: 3.46 (approximately)
6. Question: Ek triangle ke tino angles ka sum kitna hota hai?
Answer: 180 degrees
7. Question: 15% of 200 ka value kya hoga?
Answer: 30
8. Question: Agar speed 60 km/hr hai aur distance 180 km hai, toh time kitna lagega?
Answer: 3 hours
(Formula: Time = Distance / Speed)
9. Question: LCM of 12 and 15 kya hai?
Answer: 60
10. Question: 45° ka sine value kya hota hai?
Answer: 1/√2
11. Question: Agar a
= 3:4, aur b
= 2:3, toh a
ka ratio kya hoga?
Answer: 3:6
12. Question: Ek circle ka radius 7 cm hai, toh uska circumference kya hoga?
Answer: 44 cm
(Formula: Circumference = 2Ï€r)
13. Question: 5x + 3 = 18, x ka value kya hoga?
Answer: 3
14. Question: 9² - 4² ka value kya hai?
Answer: 65
(Using formula: a² - b² = (a+b)(a-b))
15. Question: Agar compound interest ka rate 10% hai, toh 1000 rupees ka 2 saalon baad amount kya hoga?
Answer: 1210
(Using formula: A = P (1 + R/100)^T)
16. Question: 4x - 5 = 11, x ka value kya hoga?
Answer: 4
17. Question: Ek cylinder ka volume ka formula kya hai?
Answer: πr²h
18. Question: 25 ka 40% kya hoga?
Answer: 10
19. Question: Agar x² - 9 = 0, toh x ka value kya hoga?
Answer: x = 3 or x = -3
20. Question: 0.75 ko fraction mein convert karo.
Answer: 3/4
Conclusion: Yeh the 20 most important mathematics questions jo aapko RRB NTPC exam mein zaroor madad karenge. In questions ko achhe se revise karein, formulas yaad rakhein, aur practice zaroor karein. All the best for your RRB NTPC exam!
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