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RRB NTPC Mathematics Quiz : 9th November

Dear aspirants,
As you all know, RRB NTPC Exam will be held in the month of November-December 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.

(a) 2.5

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(a) 3/17
(b) 5/19
(c) 7/11
(d) 6/11

Q4. In an alloy, Zinc and Copper are in the ratio 1 : 2. In the second alloy, the same elements are in the ratio 2 : 3. If there two alloys combined to form a new alloy in which two elements are in the ratio 5 : 8, the ratio of these two alloys in the new alloys is –
(a) 3 : 10
(b) 7 : 3
(c) 3 : 7
(d) 10 : 3

Q5. A jar contained a mixture for two liquids A and B in the ratio 4 : 1. When 10 L of the mixture was taken out and 10 L of liquid B was poured into the jar, this ratio becomes 2 : 3. The quantity of liquid A contained in the gas initially was –
(a) 4 L
(b) 12 L
(c) 8 L
(d) 16 L

Directions(5-10): observe the graph and answer the question based on it

Q6. The percent increase in population from 1971 to 1981 –
(a) 20%
(b) 24.8%
(c) 16.7%
(d) 27.3%

Q7. In which census year, the percent increase in population is highest as compared to that in previous census years?
(a) 1971
(b) 1961
(c) 1981
(d) 1951

Q8. In which census year, the percent increase in population is least as compared to that in the previous census year?
(a) 1941
(b) 1971
(c) 1961
(d) 1951

Q9. Per year increase in population from the year 1931 to 1981 is
(a) 810,0000
(b) 760,0000
(c) 890,0000
(d) 670,0000

Q10. A and B enter into a partnership by making investment in the ratio 1 :2, 5% of the total profit goes to charity. If B’s share is Rs 760, then total profit is –
(a) Rs 2400
(b) Rs 1800
(c) Rs 1200
(d) Rs. 1560


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