**Learn and Practice Free Average Set 6 questions **

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#### If the arithmetic mean of seventy-five numbers is calculated, it is 35. if each number is increased by 5, then mean of new numbers is :

Option 1: 30

Option 2: 40

Option 3: 50

Option 4: 60

Option 5:

#### The captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older. If the ages of these two are excluded, the average age of the remaining players is one year less than the average age of the whole team. What is the average age of the team ?

Option 1: 20 Years

Option 2: 21 Years

Option 3: 22 Years

Option 4: 23 Years

Option 5:

#### The average temperature of the town in the first four days of a month was 58 degrees. The average for the second, third, fourth and fifth days was 60 degrees. If the temperatures of the first and fifth days were in the ratio 7 : 8, then what is the temperature on the fifth day ?

Option 1: 62 degrees

Option 2: 63 degrees

Option 3: 64 degrees

Option 4: 65 degrees

Option 5:

#### A car owner buys petrol at Rs 7.50, Rs. 8 and Rs. 8.50 per litre for three successive years. What approximately is the average cost per litre of petrol if he spends Rs. 4000 each year ?

Option 1: 6.23

Option 2: 7.98

Option 3: 8.97

Option 4: 9.89

Option 5:

#### The average age of 15 students of a class is 15 years. Out of these, the average age of 5 students is 14 years and that of the other 9 students is 16 years, The age of the 15th student is :

Option 1: 11

Option 2: 12

Option 3: 13

Option 4: 14

Option 5:

#### The average age of 36 students in a group is 14 years. When teachers age is included to it, the average increases by one. What is the teachers age in years ?

Option 1: 35 Years

Option 2: 45 Years

Option 3: 51 Years

Option 4: 49 Years

Option 5:

#### The average age of a husband and his wife was 23 years at the time of their marriage. After five years they have a one-year old child. The average age of the family now is :

Option 1: 25

Option 2: 23

Option 3: 19

Option 4: 18

Option 5:

#### Of the four numbers, whose average is 60, the first is one-fourth of the sum of the last three. The first number is :

Option 1: 17

Option 2: 29

Option 3: 36

Option 4: 48

Option 5:

#### The average of runs of a cricket player of 10 innings was 32. How many runs must he make in his next innings so as to increase his average of runs by 4 ?

Option 1: 76

Option 2: 79

Option 3: 85

Option 4: 87

Option 5:

#### David obtained 76, 65, 82, 67 and 85 marks (out of 100) in English, Mathematics,Physics, Chemistry and Biology What are his average marks ?

Option 1: 75

Option 2: 68

Option 3: 65

Option 4: 60

Option 5:

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