Mathematics Quiz For RRB NTPC : 11th February For Profit & Loss , Time & Work And Average

Q1. A businessman allows a discount of 10% on the market price. What percent above the cost price must he mark his goods to make a profit of 17%?
(a) 20%
(b) 27%
(c) 18%
(d) 30%

Q2. A can do a piece of work in 4 days and B can do it in 12 days. In how many days will they finish the work, both working together?
(a) 3 days
(b) 4 days
(c) 6 days
(d) 2 days

Q3. A can do 1/4 of a work in 10 days. B can do 1/3 of the work in 20 days. In how many days can both A and B together do the work?
(a) 25 days
(b) 30 days
(c) 32 days
(d) 24 days

Q4. A circular wire of diameter 112 cm is cut and bent in the form of a rectangle whose side are in the ratio of 9 : 7. The small side of the rectangle is
(a) 87 cm
(b) 77 cm
(c) 97 cm
(d) 67 cm

Q5. The cost price of a table is Rs. 3,200. A merchant wants to make 25% profit by selling it. At the time of sale he declares a discount of 20% on the marked price. The marked price (in Rs.) is
(a) Rs. 4,500
(b) Rs. 5,000
(c) Rs. 6,000
(d) Rs. 4,000

Q6. A train travelling at a speed of 55 km/hr., travels from place X to place Y in 4 hours. If its speed is increased by 5 km/hr. then the time of journey is reduced by
(a) 30 min
(b) 25 min
(c) 35 min
(d) 20 min

Q7. In what time will Rs. 8,000, at 3% per annum, produce the same interest as Rs. 6,000 does in 5 years at 4% simple interest?
(a) 4 years
(b) 5 years
(c) 6 years
(d) 3 years

Q8. The value of is
(a) 12
(b) 3
(c) 9
(d) 6

Q9. The average of 50 numbers is 38. If two numbers, namely 45 and 55 are discarded, the average of the remaining numbers is
(a) 37.0
(b) 37.5
(c) 37.9
(d) 36.5

Q10.

Solutions:

Important Links for RRB NTPC Recruitment 2019
RRB NTPC Admit Card
RRB NTPC Previous year Cut Off | 1st & 2nd Stage Examination
RRB NTPC Recruitment 2019: Check FAQs
RRB NTPC Exam Pattern 2019 – Check Here
RRB NTPC Previous Year Exam Analysis
RRB NTPC Exam Syllabus

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