A completes a work in 12 days whereas B completes the same work in 24 days. If both A and B work together, the work will be completed in ____ ?
A. 8
B. 11
C. 5
D. 17
Average Mcqs
Mathematics Average MCQs for test preparation for all competitive exams
If 3 persons do 3 times of a particular work in 3 days, then 7 persons can do 7 times of that work in ____ .
A. 12 days
B. 3 days
C. 7 days
D. 9 days
If a person reads 40 pages in half an hour. After how many hours did he read 1360 pages ?
A. 6 hours
B. 17 hours
C. 16 hours
D. 18 hours
Sum of the age of 6 children born at the intervals of 2 years in 60 years. What is the age of the youngest child ?
A. 5
B. 7
C. 13
D. 34
In a group of 26 students, 21 like football and 14 like cricket. What is the number of students who like both football and cricket ?
A. 22
B. 54
C. 17
D. 9
Average of 20 numbers is zero of them at the most, how many may be greater than zero ?
A. 19
B. 12
C. 10
D. 43
Age of the father is three times that of the son. The sum of ages is 48. What are their ages ?
A. 48, 44
B. 41, 67
C. 12, 36
D. 12, 44
If a person has 6 rupees and his friend has 4 rupees, combined they have ____rupees.
A. 3
B. 7
C. 10
D. 15
In a bag, if there are 5 blue balls, 6 red balls, and 11 white balls. What is the probability that if one ball is pulled out of the bag, it is white ?
A. 0.25
B. 2
C. 1
D. 0.5
An object is placed 20 cm from a diverging lens. If the distance between the lens and the image is 8 cm, what is the magnification ?
A. 1/2
B. 5/2
C. 1/15
D. 2/5