Q1. The average of the age of Sumit, Krishna and Rishabh is 43 years and the average of the age of Sumit, Rishabh and Rohit is 49 years. If Rohit is 54 years old, what is Krishna’s age?
Q2. Find the total arrangements that can be made by using all the letters of the word ‘CAREER’ ?
Q3. My brother is 3 years elder to me. My father was 28 years of age when my sister was born while my mother was 26 years of age when I was born. If my sister was 4 years of age when my brother was born, then, what was the age of my father and mother respectively when my brother was born?
Q4. A bag contains 5 blue and 4 black balls. Three balls are drawn at random. What is the probability that 2 are blue and 1 is black?
Q5. In a simultaneous throw of two dice, what is the probability of getting a total of 10 or 11?
Directions (6-10): Read the following graph and table carefully and answer the questions given below.
Percentage distribution of admitted students in four different disciplines in a college from 2011 to 2015. Assume that these colleges take admission in given disciplines only.
Q7. The number of students admitted in Robotics in 2014 is what percent of the number of students admitted in Agricultural in 2012?
Q8. What is the difference between the number of students admitted in Chemical in 2014 and number of admitted students of Robotics in 2015?
Q9. Find the ratio between number of Agricultural students admitted in2015 to total number of students admitted in2011?
Q10. Find the total number of students admitted in Robotics in 2014 if in that year 5% of students admitted in Agricultural were transferred in Robotics ?
Q12. 36% of 545 + 32% of 215 – 47% of 1300 = ?
Q14. 12 × 16 + ? = 18²