Aptitude · all questions

Average
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

476

Questions

15/24

Page

Pick an option on a question to see the right answer and solution.

Q281

The average monthly income of A and B is Rs. 14000, that of B and C is Rs. 15600 and A and C is Rs. 14400. The monthly income of C is :

Select an option to see the answer and solution.

Q282

The average of 25 observations is 13. It was later found that an observation 73 was wrongly entered as 48. The new average is -

Select an option to see the answer and solution.

Q283

The average of 12 numbers is 15 and the average of the first two is 14. What is the average of the rest ?

Select an option to see the answer and solution.

Q284

A fruit seller sold big, medium and small sizes apples of Rs. 15, Rs. 10 and Rs. 5, respectively. The total number of apples sold were in the ratio 3 : 2 : 5. Find the average cost of an apple.

Select an option to see the answer and solution.

Q285

Average age of 6 sons of a family is 8 years. Average age of sons together with their parents is 22 years. If the father is older than the mother by 8 years, the age of mother (in years) is -

Select an option to see the answer and solution.

Q286

In a class, there are 40 boys and their average age is 16 years. One boy, aged 17 years, leaving the class and another joining, the average age becomes 15.875 years The age of the new boy is :

Select an option to see the answer and solution.

Q287

If average of 20 observations x₁, x₂, . . . . . x₂₀ is y, then the average of x₁ - 101, x₂ - 101, x₃ - 101, . . . . . x₂₀ - 101 is :

Select an option to see the answer and solution.

Q288

The average of 5 consecutive integers starting with 'm' is n. What is the average of 6 consecutive integers starting with (m + 2)?

Select an option to see the answer and solution.

Q289

The average marks of 14 students was 71. It was later found that the marks of one of the student has been wrongly entered as 42 instead of 56 and another as 74 instead of 32. What is the correct average ?

Select an option to see the answer and solution.

Q290

In a 20 over match, the required run rate to win is 7.2. If the run rate is 6 at the end of the 15th over, the required run rate to win the match is :

Select an option to see the answer and solution.

Q291

The average age of 10 children is 9 years 9 months. The average of 9 children is 8 years 11 months. What is the age of the tenth child ?

Select an option to see the answer and solution.

Q292

The average weight of 20 students in a class is increased by 0.75 kg when one student of 35 kg replaced by a new student. Weight of the new student (in kg) is :

Select an option to see the answer and solution.

Q293

In a pre school, the average weight of 30 girls in a class among 50 students is 16 kg and that of the remaining students is 15.5 kg. What is the average weight of all the students in the class ?

Select an option to see the answer and solution.

Q294

Out of nine persons, 8 persons spent Rs. 30 each for their meals. The ninth one spent Rs. 20 more than the average expenditure of all the nine. The total money spent by all of them was :

Select an option to see the answer and solution.

Q295

A man had 7 children. When their average age was 12 years, a child aged 6 years died. Then average age of remaining six children is :

Select an option to see the answer and solution.

Q296

In a class, the average score of girls in an examination is 73 and that of boys is 71. The average score for the whole class is 71.8. Find the percentage of girls :

Select an option to see the answer and solution.

Q297

If the average of 6 consecutive even number is 25, the difference between the largest and the smallest number is :

Select an option to see the answer and solution.

Q298

The sum of three consecutive even numbers is 28 more than the average of these three number. Then the smallest of these number is -

Select an option to see the answer and solution.

Q299

A man purchased 7 bags of rice at the rate of Rs. 800 each, 8 bags of rice at Rs. 1000 each and 5 bags of rice at the rate of Rs. 1200 each. What is the average cost of one bag of rice ?

Select an option to see the answer and solution.

Q300

The average of 30 numbers is 40 and that of other 40 numbers is 30. The average of all the numbers is :

Select an option to see the answer and solution.

Prev 13 14 15 16 17 Next