Q1. A container contains mixture of milk and water in which milk is 80%. 75% of mixture is taken out and 10 water is added, now the concentration of milk in the mixture is 60%. Find the quantity of milk initially.
(a) 90
(b) 96
(c) 72
(d) 64
(e) None of these
Q2. The ratio of investment of A, B, C and D in a business is 2 : 3 : 5 : 7. A and B started the business initially, while C and D joined the business after 4 months. After 1 year the profit of C is equal to the average of the profit of A and D. i.e. 12000 Rs. Then find the Share of B.
(a) 10000 Rs
(b) 10800 Rs
(c) 12000 Rs
(d) 11000 Rs
(e) None of these
Q3. The length of a rectangle is increased by 49.99%.While its breadth is decreased by 10.01%. Then find the percentage change in area.
(a) 35% increase
(b) 45% increase
(c) 25% increase
(d) 30% increase
Q4. When Rs 6000 invested in a scheme for 6 years at x% simple interest per annum gives Rs 720 more interest as compared to the interest earned when the same principal is invested in another scheme for 4 years at (x + 2)% simple interest per annum. Find x
(a) 8%
(b) 10%
(c) 14%
(d) 12%
(e) None of these
Q5. A shopkeeper bought 150 calculators at the rate of Rs. 250 per calculator. He spent Rs. 2500 on transportation and packing. If the marked price of calculator is Rs. 320 per calculator and the shopkeeper gives a discount of 5% on the marked price then what will be the percentage profit gained by the shopkeeper?
(a) 20%
(b) 14%
(c) 15%
(d) 16%
(e) None of these
Q6. The average weight of 3 men A, B and C is 84 kg. Another man D joins the group and the average now becomes 80 kg. If another man E, whose weight is 3 kg more than that of D, replaces A, then average weight of B, C, D and E becomes 79 kg. the weight of A is:
(a) 70 kg
(b) 72 kg
(c) 74 kg
(d) 80 kg
(e) None of these
Q7. A retailer purchases a sewing machine at a discount of 15% and sells it for Rs. 1955. In the bargain he makes a profit of 15%. How much is the discount which he got from the whole sale?
(a) Rs. 270
(b) Rs. 290
(c) Rs. 300
(d) 310
(e) None of these
Q8. The wheat sold by a shopkeeper contained 10% low quality wheat. What quantity of good quality wheat should be added to 150 kg of wheat so that percentage of low quality wheat becomes 5%?
(a) 50kg
(b) 150 kg
(c) 135 kg
(d) 75kg
(e) None of these
Q9. An urn contains 6 red, 4 blue and 2 green balls. 3 balls are picked at random, find the probability that all the 3 balls are of same colour.
(a)8/55
(b)9/55
(c)1/11
(d)7/55
(e) None of these
Q10. 2 candles of the same height are lighted at the same time. The first is to be consumed in 5 hours and seconds in 4 hours. Assuming that they burn at constant rates, in how many hours their height will be in ratio 3 : 2 ?
(a)20/7
(b)10/3
(c)4
(d)11/3
(e) None of these
ANSWERS
1)b 2)b 3)a 4)b 5)b 6)e 7)c 8)b 9)e 10)a
