1) In a company , 60% of the employees are men. Of these 40% are drawing more than ` 50,000 per year. If 36% of the total employees of the company draw more than ` 50,000 per year, what is the percentage of women who are drawing less than ` 50,000 per year?

2) The age of a man is three times the sum of the ages of his two sons. Five years hence, his age will be double of the sum of the ages of his sons. The father's present age is

3) When the time in the wall-clock is 3.25 p.m., the acute angle between the hours-hand and the minutes-hand is

4) Amit started a business by investing ` 30,000. Rahul joined the business after some time and invested ` 20,000. At the end of the year, profit was divided in the ratio of 2 : 1. After how many months did Rahul join the business?

5) In 1930, a person’s age was 8 times that of his shown.

In 1938, the father's age became ten times that of his son’s age in 1930. The ages of the son and father in 1940 were respectively

6) In a survey , it was found that 80% of those surveyed owned a car while 60% of those surveyed owned a mobile phone. If 55% owned both a car and a mobile phone, what percent of those surveyed owned a car or a mobile phone or both?

7) A city has a population of 3,00,000 out of which 1,80,000 are males. 50% of the population is literate. If 70% of the males are literate, the number of literate females is

8) Water is filled in a container in such a manner that its volume doubles after every five minutes. If it takes 30 minutes for the container to be full, in how much time will it be one-fourth full?

9) For the system of equations x2 + y2 = 34, x4 – y4 = 544, the values of x and y are

10) In a class there are 18 boys who are over 160 cm tall. If these boys constitute three fourths of the boys and the total number of boys is two-third of the number of students in the class, then what is the number of girls in the class?