AVERAGE (CDS)

Total Questions: 23

21. The price of a commodity increased by 5% from 2010 to 2011, 8% from 2011 to 2012 and 77% from 2012 to 2013. What is the average price increase (approximate) from 2010 to 2013? [2014 (II) Evening Shift ]

Correct Answer: (d) 30%
Solution:Let the price of commodity in 2010 = ₹100

22. If the average of A and B is 30, the average of C and D is 20, then which of the following is/are correct? [2014 (I) Morning Shift ]

I. The average of B and C must be greater than 25.
II. The average of A and D must be less than 25.

Select the correct answer using the codes given below

Correct Answer: (d) Neither I nor II
Solution:Average of A and B = 30

23. The average age of male employees is 52 year and that of female employees is 42 year. The percentage of male and female employees are respectively [2014 (I) Morning Shift ]

Correct Answer: (a) 80% and 20%
Solution:Let the number of male employees be x and female employees be y.