Quant Quiz

1.The students in three classes are in the ratio 2 : 3 : 5. If 20 students are increased in each class. The ratio changes to 4 : 5 : 7. The total number of students in the three classes before the increase were:
    (1) 10        (2) 90          (3) 100    (4) Cannot be determined    (5) None of these
2.Anu and Vinay invested in a business. They earned some profit and divided in the ratio 2 : 3. If Anu invested Rs 40, find the money invested?
    (1) Rs 20            (2) Rs 30    (3) Rs 80    (4) Rs 60    (5) None of these
3.The ratio of ages of mother and daughter at present is 6 : 1. After 5 years the ratio will become 7 : 2. What is the percent age, in years, of the son?
    (1) 6 yrs.            (2) 5 yrs.    (3) 10 yrs.    (4) 11 yrs.    (5) None of these
4.The length and the breadth of a field is of ratio 3 : 2 and the area is 5200 sq.ft. Its length is increased by 10 feet, what will be approx the new area?
    (1) 3012            (2) 3019    (3) 3225    (4) 3275    (5) None of these
5.A sum of money is to be distributed among A, B, C, D in the proportion of 5:2:4:3. If C gets Rs.1000 more than D, what is B's share?
    (1) Rs. 500            (2) Rs. 1500    (3) Rs. 2000    (4) Rs 2200    (5) None of these   
6.Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats?
    (1) 2 : 3 : 4            (2) 6 : 7 : 8    (3) 6 : 8 : 9    (4) 3 : 4 : 5    (5) None of these
7.In a mixture 60 litres, the ratio of milk and water 2 : 1. If the this ratio is to be 1 : 2, then the quantity of water to be further added is:
    (1) 20 litres            (2) 30 litres    (3)  40 litres    (4) 60 litres    (5) None of These
8.The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio?
    (1) 8 : 9        (2) 17 : 18    (3) 21 : 22    (4) Cannot be determined (5) None of These
9.Salaries of Ravi and Sumit are in the ratio 2 : 3. If the salary of each is increased by Rs. 4000, the new ratio becomes 40 : 57. What is Sumit's salary?
    (1) Rs. 17,000        (2) Rs. 20,000    (3) Rs. 25,500    (4) Rs. 34,000    (5) None of These
10.The sum of three numbers is 98. If the ratio of the first to second is 2 :3 and that of the second to the third is 5 : 8, then the second number is:
    (1) 20            (2) 30        (3) 48        (4) 58        (5) None of These

Answer
1-3, 2-4, 3-2, 4-1, 5-3, 6-1, 7-4, 8-3, 9-4, 10-2