[Enquiry Officer, 2018]
1. A two digit number is such that the product of the digits is 8. When 18 is added to the number, then the digits are reversed. The number is:
18
24
42
81
2. The average marks of 10 students of a class is 26, where average marks of passed students is 80 and average marks of failed students is 20. Find the number of students who passed?
1
2
3
4
3. The average monthly income of a person in a certain family of 5 members is Rs. 1000. What will be monthly average income of a person in the same family, if the income of one person is increased by Rs.12000 per year?
Rs.1200
Rs.1600
Rs.2000
Rs.3400
4. Five years ago, the average age of four men was 48 yr. Now, a new man joins and the average age increased by 2 yr. What is the age of the new man?
36 yr
42 yr
41 yr
38 yr
5. A farmer is increasing the length of his rectangular field by 25% and reducing its breadth by 15% due to soil problem. What will be the percentage change in the area of the plot?
40%
10%
6.25%
12.50%