Important Mathematics Questions For RRB Group D/ ALP : 24th August 2018


Dear students, you know that QUANT is a part of getting points and every chapter is important. Therefore, we are providing 10 questions of mathematics. Solve all these quizzes every day so that you can improve your accuracy and speed. We also provide lots of quant questions. So you can practice that chapter which takes more time to solve the questions.

प्रिय पाठकों, आप सभी जानते हैं कि संख्याताम्क अभियोग्यता का भाग बहुत ही महत्वपूर्ण है. इसलिए हम आपको संख्यात्मक अभियोग्यता कि 10 प्रश्नों कि प्रश्नोत्तरी प्रदान कर रहे हैं. इन सभी प्रश्नोत्तरी को दैनिक रूप से हल कीजिये ताकि आप अपनी गति और सटीकता में वृद्धि कर सकें. हम आपको अन्य कई संख्यात्मक अभियोग्यता के प्रश्न प्रदान करेंगे. ताकि आप पाठ्यक्रम अनुसार उन्हें हल कर पायें.

Q1. If 40 men or 60 women or 80 children can do a piece of work in 6 months, then 10 men, 10 women and 10 children together do half of the work in
यदि 40 पुरुष या 60 महिलाएं या 80 बच्चे एक कार्य को 6 महीने में पूरा कर सकते हैं, तो 10 पुरुष, 10 महिलाएं और 10 बच्चे एक साथ आधे कार्य को कितने समय में पूरा करते हैं
(a) 5 (6/13) months/महीने
(b) 6 months/महीने
(c) 5(7/13) months/महीने
(d) 11(1/13) months/महीने
Q2. Three cubes of sides 6 cm, 8 cm and 1 cm are melted to form a new cube. The surface area of the new cube is
भुजा 6 सेमी, 8 सेमी और 1 सेमी के तीन घनों को पिघला कर एक नया घन बनाया जाता हैं. नए घन का सतह क्षेत्रफल कितना है
(a) 486 cm²/वर्ग सेमी
(b) 496 cm²/वर्ग सेमी
(c) 586 cm²/वर्ग सेमी
(d) 658 cm²/वर्ग सेमी
Q3. I walk a certain distance and ride back taking a total time of 37 minutes. I could walk both ways in 55 minutes. How long would it take me to ride both ways?
मैं एक निश्चित दूरी तक चल कर जाने और वाहन में वापस आने में 37 मिनट का कुल समय लेता हूं. मैं दोनों ओर चल कर जाने में 55 मिनट का समय लेता हूँ. मुझे दोनों ओर वाहन द्वारा यात्रा करने में कितना समय लगेगा?
(a) 30 minutes/मिनट
(b) 19 minutes/मिनट
(c) 37 minutes/मिनट
(d) 20 minutes/मिनट
Q4. The compound interest on a certain sum of money at a certain rate per annum for two years is Rs. 2,050, and the simple interest on the same amount of money at the same rate for 3years is Rs. 3,000. Then the sum of money is
एक निश्चित राशी पर दो वर्ष के लिए एक निश्चित वार्षिक दर से अर्जित चक्रवृद्धि ब्याज 2,050 रुपये है, और समान राशी पर 3 वर्ष में समान दर परअर्जित साधारण ब्याज 3,000 रुपये है. राशि ज्ञात कीजिये
(a) Rs. 20,000/रूपये
(b) Rs. 18,000/रूपये
(c) Rs. 21,000/रूपये
(d) Rs. 25,000/रूपये
Q5. If ab + bc + ca = 0, then the value of [1/(a² – bc)]+[1/(b²  – ac)]+[1/(c² – ab)] is
यदि ab + bc + ca = 0 है,तो [1/(a² – bc)]+[1/(b²  – ac)]+[1/(c² – ab)] का मान ज्ञात कीजिये
(a) 2
(b) –1
(c) 0
(d) 1
Q6. The mean of 20 items is 55. If two items 45 and 30 are removed, the new mean of the remaining items is
20 वस्तुओं का माध्य 55 है. यदि दो वस्तुओं में से 45 और 30 हटा दिया जाता हैं, तो शेष वस्तुओं का नया माध्य है
(a) 65.1
(b) 65.3
(c) 56.9
(d) 56
Q7. The elimination of θ from x cosθ –y sin θ = 2 and x sin θ + y cos θ = 4 will be 
x cosθ –y sin θ = 2 और x sin θ + y cos θ = 4 में से θ का विलोपन कितना होगा   
(a)  x²+ y² = 20
(b)  3x² + y² = 20 
(c) x² – y² = 20 
(d) 3x² –y² = 10 
Q8. The value of 1/(cosecθ-cot⁡θ )-1/sinθ is 
1/(cosecθ-cot⁡θ )-1/sinθ का मान कितना है
(a) 1 
(b) cotθ 
(c) cosecθ
(d) tanθ
Q9. If cos⁴θ = 2/3, then the value of 1-2 sin²θ is   
यदि cosθ = 2/3 है,तो 1-2 sin²θ का मान ज्ञात कीजिये   
(a)  4/3
(b)  0
(c) 2/3
(d) 1/3
Q10. The value of [sinA/(1+cosA)]+[sinA/(1-cosA)] is (0°<A<90°) 
[sinA/(1+cosA)]+[sinA/(1-cosA)] का मान कितना है (0°<A<90°)
(a) 2 cosec A  
(b) 2 sec A
(c) 2 sin A
(d) 2 cos A 

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