Mathematics Quiz Percentage And Ratio & Proportion

Mathematics Quiz For RRB NTPC Percentage And Ratio & Proportion

Q1. If A is equal to 20% of B and B is equal to 25% of C; then what percent of C is A?
(a) 10
(b) 15
(c) 5
(d) 20

Q2. If 40% of a number is 256, then what is 25% of that number?
(a) 260
(b) 150
(c) 160
(d) 210

Q3. The difference between 30% of a number and of the same number is 2610. What is  of that number?
(a) 10500
(b) 9800
(c) 2450
(d) 3500

Q4. 40% of a number is equal to 3/5 of another number. What is the ratio between the first number and second number respectively?
(a)3 : 2
(b)2 : 3
(c)3 : 4
(d) Cannot be determined


Q5. Vandana sells an article for Rs. 3240 and earns a profit of 20%. What is the cost price of the article?
(a)Rs. 2,800
(b)Rs. 2,820
(c)Rs. 2,750
(d)Rs. 2,700

Q6. 5% more is gained by selling a watch for Rs. 350 than by selling it for Rs. 340. The cost price of the watch is:
(a) Rs. 110
(b) Rs. 140
(c) Rs. 200
(d) Rs. 250

Q7. If 60% of the students in a school are boys and number of girls is 812, how many boys are there in the school?
(a) 1128
(b) 1218
(c) 1821
(d) 1281

Q8. The price of a chair is Rs. 500. It has been sold at two succesive discounts of 10% each. What is its selling price?
(a) Rs. 400
(b) Rs. 405
(c) Rs. 415
(d) Rs. 425

Q9. In a Village panchayat society 574 names are enlisted as ‘below poverty level’. If 14% of the villagers are below poverty level, the total number of villagers is?
(a) 4100
(b) 4200
(c) 4000
(d) 3800

Q10. If X is equal to 15% of Y and Y is equal to 15% of Z; then what percent of Z is X?
(a) 2
(b) 1.75
(c) 3.25
(d) 2.25

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