Home
Class 9
MATHS
A boy was asked to add 3 to a certain nu...

A boy was asked to add 3 to a certain number and to divide the sum by 2 , but he subtracted 2 from the number and multiplied it by 3 and got the same result. Find the number and the result.

Text Solution

Verified by Experts

The correct Answer is:
3 and 3;
Promotional Banner

Topper's Solved these Questions

  • LINEAR EQUATIONS IN REAL PROBLEMS

    CALCUTTA BOOK HOUSE|Exercise EXERCISE-5|31 Videos
  • LINEAR EQUATIONS

    CALCUTTA BOOK HOUSE|Exercise EXERCISE - 4.2|77 Videos
  • LOGARITHM

    CALCUTTA BOOK HOUSE|Exercise Exercise - 7 (Long-answer type questions)|49 Videos

Similar Questions

Explore conceptually related problems

The sum of three numbers in A.P. is 3 and their product is – 35. Find the numbers.

Three numbers are in G.P. whose sum is 70. If the extremes be each multiplied by 4 and the means by 5, they will be in A.P. Find the numbers.

The sum of three numbers in G.P. is 56. If we subtract 1, 7, 21 from these numbers in that order, we obtain an arithmetic progression. Find the numbers.

The ratio of two numbers is 11 : 13 . If 3 is subtracted from each number, the ratio of the results of the subtractions is 5 : 6 . Find the numbers .

The sum of the digits of a number consisting of two digits is 14 and if 29 is subtracted from the number, then two digits of the number becomes equal to each other. Find the number.

The sum of three numbers in GP. is 56. If we subtract 1, 7, 21 from these numbers in that order, we obtain an arithmetic progression. Find the numbers.

Subtract the number (7-sqrt3) and (3+sqrt3)

What quantity should be subtracted from each of the numbers a, b, c and d so that the results of the subtractions are in continued proportional ?

The sum of the digits of number consisting of the digits is 8. If 18 is deducted from the number. The digits of the number interchange the places. Find the number

CALCUTTA BOOK HOUSE-LINEAR EQUATIONS IN REAL PROBLEMS-EXERCISE-5
  1. Sum of the numerator and the denominator of a fraction is 13. If 4 is ...

    Text Solution

    |

  2. A man travels a distance in 3 hours with a uniform velocity . If the d...

    Text Solution

    |

  3. If the length of a a rectangular park be increased by 2 metres and the...

    Text Solution

    |

  4. If 2 is subtracted from the numerator and 3 is added to the denominato...

    Text Solution

    |

  5. The sum of the present ages of a mother and her daughter is 55 years. ...

    Text Solution

    |

  6. A number of two digits is 3 more than 4 times of the sum of its digits...

    Text Solution

    |

  7. 5 times of the greater one of two numbers is 2 more than 8 times of th...

    Text Solution

    |

  8. If 2 is added to both the numerator and the denominator of a fraction ...

    Text Solution

    |

  9. The total price of 9 horses and 7 cows is Rs. 3000 and at the same rat...

    Text Solution

    |

  10. A person travels by boat 5 kilometres in 1 hour in still water. The ti...

    Text Solution

    |

  11. Determine a number of three digits such that if the digits of it be re...

    Text Solution

    |

  12. A student starting from his house walks at a speed 2(1)/(2) km/hour ...

    Text Solution

    |

  13. Total price of 3 pens and 4 pencils is Rs. 37. Again , total price of ...

    Text Solution

    |

  14. 2 men and 6 boys together can do a piece of work in 5 days . 8 men and...

    Text Solution

    |

  15. A boat travels up stream 30 kilometres and down -stream 44 kilometres ...

    Text Solution

    |

  16. Two men 8(1)/(4) kilometres apart, start to walk at the same time . I...

    Text Solution

    |

  17. If a man sells 7 horse and buys 9 cows his purchase increases by Rs. 1...

    Text Solution

    |

  18. A boy was asked to add 3 to a certain number and to divide the sum by ...

    Text Solution

    |

  19. You can spend only Rs. 16 for witnessing football matches . You can wi...

    Text Solution

    |

  20. If the angle of elevation of the Sun is 30^@, then the length of the s...

    Text Solution

    |