1. In an examination out of 480 students 85% of the girls and 70% of the boys passed. How many boys appeared in the examination if total pass percentage was 75%?
(a) 370
(b) 340
(c) 320
(d) 360
(e) None of the above
2. In what ratio must water be added to spirit to gain 10% by selling it at the cost price?
(a) 1 : 11
(b) 1 : 5
(c) 1 : 10
(d) 1 : 9
(e) None of the above
3. A person covers a distance 100 kms in 10 hours, partly by walking at 7 km/h and rest by running at 12 km/h. Find out the distance covered in each part.
(a) 28 km, 72 km
(b) 32 km, 82 km
(c) 24 km, 68 km
(d) 26 km, 70 km
(e) None of the above
4. A person travels 285 km in 6 hours in two stages. In the first part of the journey, he travels by bus at the speed of 40 km/h. In the second part of the journey, he travels by train at the speed of 55 km/h. How much distance did he travel by train?
(a) 205 km
(b) 145 km
(c) 165 km
(d) 185 km
(e) None of the above
5. A tea producer mixes two categories of tea from two gardens is the ratio 5 : 3. The cost price of one category is Rs. 27 per kg and that of other is Rs. 30 per kg. The mixture is sold at Rs. 30.25 a kg. Find his gain per cent.
(a) 8 5/3
(b) 7 5/9
(c) 9 5/9
(d) 11 5/9
(e) None of the above
6. Zinc and copper are in the ratio of 5 : 3 in 200 gm of the alloy. How much gm of copper be added to make the ratio of 3 : 5?
(a) 133 1/3
(b) 1/200
(c) 72
(d) 66
(e) None of the above
7. What quantity of water should be added to 3 litres of 10% solution of salt, so that it becomes 5% salt solution?
(a) 1.5 litres
(b) 2.7 litres
(c) 3 litres
(d) Cannot be determined
(e) None of the above
8. A painter mixes colour paint with white colour so that the mixture contains 10% blue colour. In a mixture of 40 litres colour, how many litres blue colour should be added so that the mixture contains 20% of blue colour?
(a) 2.5 litres
(b) 4 litres
(c) 5 litres
(d) 2 litres
(e) None of the above
9. Prabha purchased 30 kg of rice at the rate of Rs. 17.50 per kg and another 30 kg rice at a certain rate. He mixed the two and sold the entire quantity at the rate of Rs. 18.60 per kg and made 20 per cent overall profit. At what price per kg did he purchase the lot of another 30 kg rice?
(a) Rs. 14.50
(b) Rs. 12.50
(c) Rs. 15.50
(d) Rs. 13.50
(e) None of the above
10. The ratio of the quantities of an acid and water in a mixture is 1 : 3. If 5 litres of acid is further added to the mixture, the new ratio becomes 1 : 2. The quantity of new mixture in litres is:
(a) 32
(b) 40
(c) 42
(d) 45
(e) None of the above
0 comments:
Post a Comment
MAHENDRA GURU