RRB NTPC Mathematics Questions: 19th July_00.1
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RRB NTPC Mathematics Questions: 19th July

Dear aspirants,

As you all know, RRB NTPC Exam will be held in the month of July-September 2019. So we are here to help you with the Mathematics subject. We are providing daily quantitative aptitude quizzes, which will help you to score good marks in this section. We aim to provide the best study material to our readers with exam level questions to help them get used to the recent pattern. Attempt this quiz and check your preparation.

Q1. The average age of A, B, C, D, and E is 40 years. The average age of A and B is 35 years and the average age of C and D is 42 years. The age of E is?
ए, बी, सी, डी और ई की औसत आयु 40 साल है। ए और बी की औसत आयु 35 वर्ष है और सी और डी की औसत आयु 42 वर्ष है। ई की उम्र है:
(a) 46
(b) 48
(c) 32
(d) None of these/ इनमे से कोई नही

 RRB NTPC Mathematics Questions: 19th July_50.1

Q2. Nine persons went to a hotel for taking their meals. Eight of them spent Rs. 12 each of their meals and the ninth spent Rs. 8 more than the average expending of all the nine. Total money spent by them was?
नौ लोग अपने भोजन लेने के लिए एक होटल गए। उनमें से आठ ने 12 रुपये रुपये खर्च किये और नवेँ ने आठों के खर्च से औसत 8 रुपये अधिक खर्च किये. उनके द्वारा खर्च किया गया कुल पैसा था:
(a) 104
(b) 105
(c) 116
(d) 117

RRB NTPC Mathematics Questions: 19th July_60.1

Q3. The average age of eleven cricket players is 20 years. If the age of the coach is also included, the average age increases by 10%. The age of the coach is?
ग्यारह क्रिकेट खिलाड़ियों की औसत आयु 20 साल है। यदि कोच की उम्र भी शामिल है, तो औसत आयु 10% बढ़ जाती है। कोच की उम्र है:
(a) 48 years/ 48 वर्ष
(b) 44 years/ 44 वर्ष
(c) 40 years/ 40 वर्ष
(d) 36 years/ 36 वर्ष

RRB NTPC Mathematics Questions: 19th July_70.1

Q4. The average of 3 consecutive natural numbers (which are in increasing order) is k. If two more consecutive numbers, just next to the first set of numbers, is added, then the new average becomes?
लगातार 3 प्राकृतिक संख्याओं (बढ़ते क्रम में) का औसत k है। यदि दो और लगातार संख्याएं हैं, तो संख्याओं के पहले सेट के ठीक पहले, जोड़ा जाता है, तो नया औसत बन जाता है:
(a)k + 2
(b) k + 1
(c) (2k + 1)/2
(d) 2k – 1

RRB NTPC Mathematics Questions: 19th July_80.1

Q5. The average weight of a class of 33 students is 47 kg. If the weight of the teacher is included, then the average weight of the class increases by 1 kg. What is the weight of the teacher?
33 छात्रों की कक्षा का औसत वजन 47 किलो है। यदि शिक्षक का वजन शामिल किया गया है, तो वर्ग का औसत वजन 1 किलो तक बढ़ जाता है। शिक्षक का वजन क्या है?
(a) 48
(b) 80
(c) 71
(d) 81

RRB NTPC Mathematics Questions: 19th July_90.1

Q6. A batsman has a certain average in 59 innings that he has played till the last one. If his average increased by 2 runs after scoring 181 in the last innings, what is his average after these 60 innings?
एक बल्लेबाज की 59 पारी में एक निश्चित औसत है जिसे उन्होंने आखिरी तक खेला है। यदि पिछली पारी में 181 रन बनाने के बाद उनका औसत 2 रनों से बढ़ गया, तो इन 60 पारी के बाद उनका औसत क्या है?
(a) 61
(b) 63
(c) 62
(d) 60

RRB NTPC Mathematics Questions: 19th July_100.1

Q7. The average weight of a group of 20 boys and calculated to be 89.4 kg and it was later discovered that one weight was misread as 78 kg instead of 87 kg. The correct average weight is?
20 लड़कों के समूह का औसत वजन और 8 9 .4 किग्रा होना चाहिए और बाद में यह पता चला कि एक वजन 87 किलो के बजाय 78 किलो के रूप में गलत तरीके से पढ़ा गया था। सही औसत वजन है:
(a) 88.95 kg
(b) 89.25 kg
(c) 89.55 kg
(d) 89.85 kg

RRB NTPC Mathematics Questions: 19th July_110.1

Q8. The average monthly salary of all the employees in an industry is Rs. 12000. The average salary of male employees is Rs. 15000 an that of female employees is Rs. 8000. What is the ratio of male employees to female employees?
एक उद्योग में सभी कर्मचारियों का औसत मासिक वेतन रु. 12000/- पुरुष कर्मचारियों का औसत वेतन रु. 15000/- महिला कर्मचारियों की 8000/- रुपये है। पुरुष कर्मचारियों के अनुपात में महिला कर्मचारियों का अनुपात क्या है?
(a) 5 : 2
(b) 3 : 4
(c) 4 : 3
(d) 2 : 5

RRB NTPC Mathematics Questions: 19th July_120.1

Q9. The arithmetic mean of the scores of a group of students in a test was 52. The brightest 20% of them secured a mean score of 80 and the dullest 25% a mean score of 31. The mean score of remaining 55% is: (approx.)?
परीक्षण में छात्रों के एक समूह का अंकगणितीय स्कोर 52 था। उनमें से सबसे तेज 80 का औसत स्कोर 20% और 31 सबसे सुस्त का औसत स्कोर 25% था। शेष 55% का औसत स्कोर है: ( लगभग।)
(a) 45
(b) 50
(c) 51.4
(d) 54.6

RRB NTPC Mathematics Questions: 19th July_130.1

Q10. In the afternoon, a student read 100 pages at the rate of 60 pages per hour. In the evening, when she was tired, she read 100 more pages at the rate of 40 pages per hour. What was her average rate of reading, in pages per hour?
दोपहर में, एक छात्रा प्रति घंटे 60 पृष्ठों की दर से 100 पृष्ठों को पढ़ती है। शाम को, जब वह थक गई थी, तो उसने 40 पृष्ठों प्रति घंटे की दर से 100 पेज और पढ़े। प्रति घंटा पृष्ठों कोपढ़ने की उसकी औसत दर क्या थी?
(a) 60
(b) 70
(c) 48
(d) 50

RRB NTPC Mathematics Questions: 19th July_140.1

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