Math Mock Test in English for online practice of Competitive Exams. Objective MCQs with answer and solution.
Results
#1. The HCF and LCM of two numbers are 12 and 924 respectively. Then the number of such pairs is
Let the numbers be 12x and
12y where x and y are prime to
each other.
LCM = 12xy
12xy = 924
xy = 77
Possible pairs = (1,77) and (7,11)
#2. When 75% of a number is added to 75, the result is the same number. Find the number.
#3. In an examination, 52% students failed in Hindi and 42% in English. If 17% failed in both the subjects, what percentage of students passed in both the subjects?
#4. Of the three numbers, the second is twice the first and also thrice the third. If the average of the three numbers is 44, the largest number is
#5. If the price of a commodity is increased by 50%, by what fraction must its consumption be reduced so as to keep the same expenditure on its consumption?
#6. The sum of a pair of positive integer is 336 and their HCF is 21.The number of such possible pairs is
#7. A takes three times as long as B and C together to do a job. B takes four times as long as A and C together to do the work. If all the three, working together can complete the job in 24 days, then the number of days, A alone will take to finish the job is
#8. In a school having roll strength 286, the ratio of boys and girls is 8 : 5. If 22 more girls get admitted into the school, the ratio of boys and girls become
#9. The wrong number of the sequence 4, 9, 19, 39, 79, 169, 319 is :
#10. If one-ninth of a certain number exceeds its one-tenth by 4, the number is :
