Home
Class 14
MATHS
While calculating the average of a ba...

While calculating the average of a batsman as 36 in 100 matches that he played, one of the scores 90 was incorrectly noted as 40. The percentage error is (a) 0.5%    (b) 1.21%    (c) 1.34%    (d) 1.36%

Promotional Banner

Topper's Solved these Questions

  • AREA

    RS AGGARWAL|Exercise All Questions|473 Videos

  • BANKERS DISCOUNT

    RS AGGARWAL|Exercise All Questions|20 Videos

Similar Questions

Explore conceptually related problems

If the radius of a circle is increased by 6%, then the area is increased by (a) 6% (b) 12% (c) 12.36% (d) 16.64%

While measuring the side of an equilateral triangle an error of k % is made, the percentage error in its area is k % (b) 2k % (c) k/2% (d) 3k %

If there is an error of 2% in measuring the length of simple pendulum,then percentage error in its period is: (a) 1% (b)2% (c) 3% (d) 4%

If the radius of a circle is diminished by 10%, then its area is diminished by (a) 10% (b) 19% (c) 20% (d) 36%

If each side of a square is increased by 10%, its area will be increased by (a) 10% (b) 21% (c) 44% (d) 100%

An error of 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is (a) 2% (b) 2.02% (c) 4% (d) 4.04%

A team played 40 games in a season and won in 24 of them. What percent of games played did the team win? (a) 70% (b) 40% (c) 60% (d) 35%

If the yield per acre of rice was 50% more than that of barley,then the production of barley is what percent of that of rice? (a) 30% (b) 33(1)/(3)%( c) 35% (d) 36%

If diameter of a circle is increased by 40%, then its area increases by (a) 96% (b) 40% (c) 80% (d) 48%

If there is an error of a % in measuring the edge of a cube,then percentage error in its surface is 2a%(b)(a)/(2)%(c)3a% (d) none of these

RS AGGARWAL-AVERAGE-All Questions
  1. The average of 10 numbers is 40.2. Later it is found that two numbe...

    Text Solution

    |

  2. A pupil’s marks were wrongly entered as 83 instead of 63. Due to th...

    Text Solution

    |

  3. While calculating the average of a batsman as 36 in 100 matches tha...

    Text Solution

    |

  4. The average age of seven boys sitting in a row facing North is 26 y...

    Text Solution

    |

  5. The average of five numbers is 306.4. The average of the first two ...

    Text Solution

    |

  6. The average marks obtained by 22 candidates in an examination is 45...

    Text Solution

    |

  7. The average of 11 numbers is 10.9. If the average of the first six ...

    Text Solution

    |

  8. The average temperature for the first four days of a week is 40. 2o...

    Text Solution

    |

  9. The average weight of three boys A ,\ B and C is 54 1/3 kg, while ...

    Text Solution

    |

  10. The average of the ages of Sumit, Krishna and Rishabh is 43 and the...

    Text Solution

    |

  11. The mean temperature of Monday to Wednesday was 37oC and of Tues...

    Text Solution

    |

  12. The average temperature of the town in the first four days of a mon...

    Text Solution

    |

  13. The average weight of A ,\ B and C is 45 kg. If the average weig...

    Text Solution

    |

  14. The average monthly income of P and Q is Rs 5050. The average mo...

    Text Solution

    |

  15. Average age of ten persons learning yoga is 32 years. When the age ...

    Text Solution

    |

  16. The average monthly income of a family of four earning members was ...

    Text Solution

    |

  17. The average weight of a class of 24 students is 35 kg. If the weigh...

    Text Solution

    |

  18. The average age of the mother and her six children is 12 years whic...

    Text Solution

    |

  19. The average weight of 8 men is increased by 1.5 kg when one of the men...

    Text Solution

    |

  20. There were 24 students in a class. One of them, who was 18 years ol...

    Text Solution

    |