RRB NTPC Mathematics Questions: 17th July_00.1
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RRB NTPC Mathematics Questions: 17th 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. In three vessels, the ratio of water and milk is 6 : 7, 5 : 9 and 8 : 7, respectively. If the mixtures of the three vessels are mixed together, then what will be the ratio of water and milk?
तीन पात्र में, पानी और दूध का अनुपात क्रमशः 6: 7, 5: 9 और 8: 7 है. यदि तीनों पात्र के मिश्रण को एक साथ मिलाया जाता हैं, तो पानी और दूध का अनुपात कितना होगा?
(a) 2431 : 3781
(b) 3691 : 4499
(c) 4381 : 5469
(d) None of these/ इनमे से कोई नहीं

RRB NTPC Mathematics Questions: 17th July_50.1

Q2. In two alloys, the ratio of iron and copper is 4 : 3 and 6 : 1, respectively. If 14 kg of the first alloy and 42 kg of the second alloy is mixed together to form a new alloy, then , what will be the ratio of iron to copper in the new alloy?
दो मिश्र धातुओं में, लौहे और तांबे का अनुपात क्रमश: 4: 3 और 6: 1 है. यदि पहली मिश्र धातु के 14 किलोग्राम और दूसरी मिश्र धातु के 42 किलोग्राम को मिला कर एक नई मिश्र धातु तैयार की जाती है, तो नई मिश्र धातु में लौह का तांबे से अनुपात कितना होगा?
(a) 11 : 3
(b) 11 : 8
(c) 8 : 1
(d) None of these/ इनमे से कोई नहीं

RRB NTPC Mathematics Questions: 17th July_60.1

Q3. Mixture of milk and water has been kept in two separate containers. Ratio of milk to water in one of the containers is 5 : 1 and that in the other container is 7 : 2. In what ratio should the mixtures of these two containers be added together so that the quantity of milk in the new mixture may become 80%?
दूध और पानी का मिश्रण दो अलग-अलग कंटेनरों में रखा गया है. एक कंटेनर में दूध का पानी से अनुपात 5: 1 है और दूसरे कंटेनर में इसका अनुपात 7:2 है. इन मिश्रणों को किस अनुपात में मिलाया जाना चाहिए ताकि नए मिश्रण में दूध की मात्रा 80% हो?
(a) 3 : 2
(b) 2 : 3
(c) 4 : 5
(d) None of these/ इनमे से कोई नहीं

RRB NTPC Mathematics Questions: 17th July_70.1

Q4. There is a ratio of 5 :4 between two numbers. If 40 percent of the first number is 12 then what would be the 50 percent of the second number?
दो संख्याओं के बीच का अनुपात 5: 4 है. यदि पहली संख्या का 40 प्रतिशत 12 है. तो दूसरी संख्या का 50 प्रतिशत कितना होगा?
(a) 12
(b) 24
(c) 18
(d) None of these/ उपरोक्त से कोई नहीं

RRB NTPC Mathematics Questions: 17th July_80.1

Q5. 1104 is divided between 3 men, 4 women and 6 boys, so that the share of a man, a woman and a boy are in the proportion of 3 : 2 : 1. How much does each boy get?
1104 को 3 पुरुष, 4 महिलाओं और 6 लड़कों के बीच इस प्रकार विभाजित किया जाता है, कि एक पुरुष, एक महिला और एक लड़का को प्राप्त हिस्से का अनुपात 3: 2: 1 है. प्रत्येक लड़के को कितना प्राप्त होगा?
(a) 48
(b) 64
(c) 96
(d) None of these/ इनमें से कोई नहीं

RRB NTPC Mathematics Questions: 17th July_90.1

Q6. The ratio of the present ages of a son and his father is 1 : 5 and that of his mother and father is 4 : 5. After 2 years the ratio of the age of the son to that of his mother becomes 3 : 10. What is the present age of the father?
एक पुत्र और उसके पिता की वर्तमान आयु का अनुपात 1: 5 है और उसकी मां और पिता की वर्तमान आयु का अनुपात 4: 5 है. 2 वर्ष बाद पुत्र की आयु और उसकी मां की आयु का अनुपात 3:10 हो जाएगा. पिता की वर्तमान आयु कितनी है?
(a) 30 वर्ष
(b) 28 वर्ष
(c) 37 वर्ष
(d) 35 वर्ष

RRB NTPC Mathematics Questions: 17th July_100.1

Q7. 3660 is divided among 4 engineers, 3 MBAs and 5 Cas such that 3 CAs get as much as 2 MBAs and 3 Engineers as much as 2 CAs. Find the share of an MBA.
3660 को 4 इंजीनियरों, 3 MBAs और 5 CAs के बीच इस प्रकार बांटा जाता है, कि 3 CAs को 2 MBAs के समान और 3 इंजीनियरों को 2 CAs के समान राशि प्राप्त होती हैं. एक MBA का हिस्सा ज्ञात कीजिये?
(a) 450
(b) 480
(c) 360
(d) 540

RRB NTPC Mathematics Questions: 17th July_110.1

Q8. Two donkeys are standing 400 metres apart. First donkey can run at a speed of 3 m/sec and the second can run at 2 m/sec. If two donkeys run towards each other after how much time (in sec) will they bump into each other?
दो गधे एक दूसरे से 400 मीटर कि दूरी पर खड़े हैं. पहला गधा 3 मी/सेकंड कि गति से भाग सकता है और दूसरा 2 मी/सेकंड कि गति से भाग सकता है. यदि दोनों गधे एक दूसरे कि ओर भागते हैं तो वे एक दूसरे से कितने सेकंड बाद टकरायेंगे?
(a) 60
(b) 80
(c) 400
(d) 40

RRB NTPC Mathematics Questions: 17th July_120.1

Q9. In a co-educational school there are 15 more girls than boys. If the number of girls is increased by 10% and the number of boys is also increased by 16% there would be 9 more girls than boys. What is the number of students in the school?
एक सह-शैक्षणिक विद्यालय में लड़कों की तुलना में लड़कियों की संख्या 15 अधिक हैं. यदि लड़कियों की संख्या में 10% की वृद्धि होती है और लड़कों की संख्या में 16% की वृद्धि होती है तो लड़कों की तुलना में लड़कियों की संख्या 9 अधिक होंगी. स्कूल में छात्रों की संख्या कितनी है?
(a) 140
(b) 125
(c) 265
(d) 255

RRB NTPC Mathematics Questions: 17th July_130.1

Q10. Zinc and copper are melted together in the ratio 9 : 11. What is the weight of melted mixture, if 28.8 kg of zinc has been consumed in it?
जिंक और कॉपर को 9: 11 के अनुपात में एक साथ पिघलाया जाता हैं. पिघले हुआ मिश्रण का वजन कितना होगा, यदि जिंक का वजन 28.8 किलोग्राम है?
(a) 58 kg/किलोग्राम
(b) 60 kg/किलोग्राम
(c) 64 kg/किलोग्राम
(d) 70 kg/किलोग्राम

RRB NTPC Mathematics Questions: 17th July_140.1

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