Mathematics Quiz For RRB NTPC : 14th December

Q1. A shopkeeper sold an article for Rs 2564.36. Approximately what was his profit percent if the cost price of the article was Rs 2400
A. 4%
B. 5%
C. 6%
D. 7%

Q2. The average of two numbers is 8 and that of another three numbers is 3. The average of those five numbers is
(a) 6
(b) 5
(c) 7
(d) 5.5

Q3. A car travels at a speed of 60 km/h and covers a particular distance in 1h. How long will it take for another car to cover the same distance at 40 km/hr?
(a) 3/2 h
(b) 1 h
(c) 5/2 h
(d) 2 h

Q4. If x : y = 5 : 2, the (8x+9y) : (8x+2y) is
(a) 22 : 29
(b) 26 : 61
(c) 29 : 22
(d) 61 : 26

Q5.A person sold 160 apples for the C.P. of 200 apples. His gain percent is
(1) 10%
(2) 15%
(3)12½%
(4) 25%

Q6. The ratio of cost price and selling price of an article is 20 : 21. What is the profit per cent on it ?
(a) 5%
(b) 5.5%
(c) 6%
(d) 6.25%

Q7. A man walks at the rate of 5 km/hr for 6 hours and at 4km/hr for 12 hours. The average speed of the man (in km/hr) is:
(a) 4
(b) 4(1/3)
(c) 4(1/2)
(d) 4(2/3)

Q8. If 1/4 th Kg of a substance costs Rs. 0.80, what will be the cost of 200 g of the same substance?
(a) 40 paise
(b) 100 paise
(c) 64 paise
(d) 60 paise

Q9. An ore contains 12% copper. How many kilograms of ore are required to get 69 kg of copper?
(a) 424 kg
(b) 575 kg
(c) 828 kg
(d) 1736 2/3 kg

Q10. Two numbers are respectively 20% and 50% more than a third number. These two numbers are in the ratio
(a) 2 : 5
(b) 4 : 5
(c) 3 : 2
(d) 5 : 2

Solutions:

 

 

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