Mathematics Question For RRB, Railway Group D, Rajasthan SI 16-05-2018

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Rajasthan Police Related reasoning question 1

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Question.(1) The three annual examinations, each of which is sum 500, a student received 45% and 55% of average marks in the first and second annual exams, respectively, to get the average score of 60% in the third annual examination Are necessary?

तीन वार्षिक परीक्षाओं में, जिनमें प्रत्येक का योगांक 500 है, एक विद्यार्थी को प्रथम एवं द्वितीय वार्षिक परीक्षाओं में औसत अंक क्रमशः 45% और 55% प्राप्त हुए, 60% का समग्र औसत प्राप्त करने के लिए तीसरी वार्षिक परीक्षा में उसे कितने अंक प्राप्त करने आवश्यक हैं?

(A) 450

(B) 400

(C) 350

(D) 300

Question.(2) Running with a speed of 8 km/hr, the thief is pursuing with a speed of 10 km/hour running by the police. If the thief is 100 meters ahead of the police then how long will it take for the cop to catch a thief?

 8 कि.मी./घण्टे की चाल से दौड़ते हुए चोर का पीछा 10 कि.मी./घण्टे की चाल से दौड़ता पुलिस वाला कर रहा है। यदि चोर पुलिस से 100 मीटर आगे है तो चोर को पकड़ने में पुलिस वाले को कितना समय लगेगा?

(A) 2 मिनट

(B) 3 मिनट

(C) 6 मिनट

(D) 10 मिनट

Question.(3) Two faucets fill one haul in 12 hours and 36 hours, respectively, if the two tapes are opened together, how many hours will the haul fill?

दो नल एक हौज को क्रमशः 12 घंटे तथा 36 घंटे में भरते हैं, यदि दोनों नल एक साथ खोल दिये जाएँ तो हौज कितने घंटे में भरेगा?

(A) 4 घंटे

(B) 6 घंटे

(C) 9 घंटे

(D) 12 घंटे

Question.(4) There are five members of a group whose average age is 11 years. How will the average age of the group members become due to the joining of another 59 in the group?

 एक समूह में पाँच सदस्य हैं जिनकी औसत आयु 11 वर्ष है। समूह में 59 वर्षीय एक और व्यक्ति के जुड़ जाने से समूह के सदस्यों की औसत आयु कितनी हो जायेगी?

(A) 17 वर्ष

(B) 19 वर्ष

(C) 21 वर्ष

(D) 23 वर्ष

Question.(5) The order of Mohan in a class is 13th from the first and the last to the 8th, how many students are there in the class?

एक कक्षा में मोहन का क्रम प्रथम से 13वाँ और अन्तिम से 8वाँ है तो कक्षा में कुल कितने विद्यार्थी हैं?


(B) 20

(C) 21

(D) 22

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