Home
Class 7
MATHS
A number is doubled and 9 s added. If th...

A number is doubled and 9 s added. If the resultant is trebled, it becomes 7. What is that number? a. 3.5 b. 6 c. 8 d. none of these

A

`3.5`

B

6

C

8

D

7

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • LINEAR EQUATIONS IN ONE VARIABLE

    S CHAND IIT JEE FOUNDATION|Exercise Self Assessment Sheet - 9|10 Videos
  • LINEAR EQUATIONS IN ONE VARIABLE

    S CHAND IIT JEE FOUNDATION|Exercise Unit Test -2|20 Videos
  • LINEAR EQUATIONS IN ONE VARIABLE

    S CHAND IIT JEE FOUNDATION|Exercise Unit Test -2|20 Videos
  • HCF AND LCM

    S CHAND IIT JEE FOUNDATION|Exercise Self Assessment Sheet|10 Videos
  • LINES AND ANGLES

    S CHAND IIT JEE FOUNDATION|Exercise SELF ASSESSMENT SHEET |10 Videos

Similar Questions

Explore conceptually related problems

A number is doubled and 9 s added. If the resultant is trebled, it becomes 75. What is that number? a. 3.5 b. 6 c. 8 d. none of these

If 5 is added to twice of a number it becomes 6, then the number is

Two numbers are such that the square of one is 224 less than 8 times the square of the other. If the numbers be in the ratio of 3:4 the numbers are a. 6,8 b. 9,12 c. 12,16 d. none of these

Two numbers are in the ratio 3:5. If 8 is added to each number,the ratio becomes 2:3. Find the numbers

The largest digit in the number is 5 (b) 7 (c) 8 (d) 9

The numerator and the denominator of a rational number are in the ratio 5:7. When 6 is added to both the numerator and denominator, the ratio becomes 4:5. What is the rational number?

If a number 774958A96B is divisible by 8 and 9, the respective values of A and B will be 5 and 8 (b) 7 and 8 (c) 8 and 0 (d) None of these

S CHAND IIT JEE FOUNDATION-LINEAR EQUATIONS IN ONE VARIABLE-Question Bank - 9
  1. Match the equations with their solutions.

    Text Solution

    |

  2. The sum of three consecutive multiplies of 3 is 72. What is the larges...

    Text Solution

    |

  3. A number is doubled and 9 s added. If the resultant is trebled, it ...

    Text Solution

    |

  4. If the sum of one-half and one-fifth of a number exceeds one-third of ...

    Text Solution

    |

  5. (1)/(2) is subtracted from a number and the difference is multiplied b...

    Text Solution

    |

  6. The denominator of a fraction is 1 more than its numerator. If 1 is de...

    Text Solution

    |

  7. Divide 224 into three parts so that the second will be twice the first...

    Text Solution

    |

  8. A rectangle is 8 cm long and 5 cm wide. Its perimeter is doubled when ...

    Text Solution

    |

  9. In an isosceles triangle, each of the two equal sides is 3 cm more tha...

    Text Solution

    |

  10. In a two digit number the digit n the units place is four times the...

    Text Solution

    |

  11. In a two digit number, unit's digit is 3 more than ten's digit. The nu...

    Text Solution

    |

  12. One third of a pole is painted yellow, one-fifth is painted white and ...

    Text Solution

    |

  13. The number that should be added to both the so that the numerator and ...

    Text Solution

    |

  14. The sum of two numbers is 18 and the difference of their squares is 10...

    Text Solution

    |

  15. X is 36 years old and Y is 16 years old. In how many years will X be t...

    Text Solution

    |

  16. A is 2 years older than B who is twice as old as C. If the total of th...

    Text Solution

    |

  17. The present ages of Amit and his father are in the ratio 2:5 respec...

    Text Solution

    |

  18. The sum of the ages of 5 children born at intervals of 3 years each is...

    Text Solution

    |

  19. A train starts will full number of passengers. At the first station, t...

    Text Solution

    |

  20. Shuba got three fourth of whát Alka had. Alka gave half of what remain...

    Text Solution

    |