Of the three numbers, the second is twice the first and thrice the third. If the average of the three numbers is 44, the largest number is....

24 | ||

72 | ||

36 | ||

108 |

The average age of 40 students of a class is 18 years. When 20 new students are admitted to the same class, the average age of the students of the class is increased by 6 months. The average age of newly admitted students is....

19 years | ||

19 years 6 months | ||

20 years | ||

20 years 6 months |

In a certain year, the average monthly income of a person was Rs 3400. For the first eight months of the year, his average monthly income was Rs 3160 and for the last five months, it was Rs 4120. His income in the eighth month of the year was....

Rs 3160 | ||

Rs 5080 | ||

Rs 15520 | ||

Rs 5520 |

If the average weight of 6 students is 50 kg; that of another 2 students is 51 kg; and that of another 2 students is 55 kg; then the average weight of all students is....

61 kg | ||

51.5 kg | ||

52 kg | ||

51.2 kg |

A cricketer had a certain average of runs for his 64 innings. In his 65th innings, he is bowled out for no score on his part. This brings down his average by 2 runs. His new average of runs is....

130 | ||

128 | ||

70 | ||

68 |

The average of 10 numbers is 7. If each number is multiplied by 12, then the average of the new set of numbers will be....

7 | ||

19 | ||

82 | ||

84 |

From a class of 24 boys, a boy, aged 10 years, leaves the class and in his place a new boy is admitted. As a result, the average age of the class is increased by 2 months. What is the age of the new boy?

12 years | ||

15 years | ||

14 years | ||

13 years |

The bowling average of a cricketer was 12.4. He improves his bowling average by 0.2 points when he takes 5 wickets for 26 runs in his last match. The number of wickets taken by him before the last match was....

125 | ||

150 | ||

175 | ||

200 |

The average of 30 numbers is 12. The average of the first 20 of them is 11 and that of the next 9 is 10. The last number is....

60 | ||

45 | ||

40 | ||

50 |

In a family, the average age of a father and a mother is 35 years. The average age of the father, mother and their only son is 27 years. What is the age of the son?

12 years | ||

11 years | ||

10.5 years | ||

10 years |