Home
Class 14
MATHS
A mason can build a wall in 70 hours. Af...

A mason can build a wall in 70 hours. After 7 hours he takes a break. What fraction of the wall is yet to be built?

A

`0.9`

B

`0.8`

C

`0.5`

D

`0.75`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • NUMBER SYSTEM

    KIRAN PUBLICATION|Exercise TYPE-VII|98 Videos

  • NUMBER SYSTEM

    KIRAN PUBLICATION|Exercise TEST YOURSELF|25 Videos

  • NUMBER SYSTEM

    KIRAN PUBLICATION|Exercise TYPE-V|21 Videos

  • MISCELLANEOUS

    KIRAN PUBLICATION|Exercise TYPE-VI|15 Videos

  • PERCENTAGE

    KIRAN PUBLICATION|Exercise TEST YOURSELF|23 Videos

Similar Questions

Explore conceptually related problems

A man can build a tank in 12 hours, After working for 6 hours, he took the help of a boy and finished the work in another in 5 hours.The time that the boy will take alone to complete the work is

A tap can fill a tub in 10 hours. After opening the tap for 5 hours it was found that a small outlet at the bottom of the tub was open and water was leaking through it. It was then immediately closed. It took 7 hours to fill the tub after closing the outlet. What time will be taken by the outlet to empty the full tub of water?

Three pipes A, B and C can fill a tank in 6 hours. After working at it together for 2 hours, C is closed and A and B can fill the remaining part in 7 hours. number of hours taken by C alone to fill the tank is 10 b. 14 c. 12 d. 16

.^(131)I has half life period 13.3 hour. After 79.8 hour, what fraction of .^(131)I will remain ?

If 14 workers can build a wall in 45 hours, how many workers will be required to do the same work in 35 hours?

KIRAN PUBLICATION-NUMBER SYSTEM-TYPE-VI
  1. The numerator of a fraction is 4 less than its denominator. If the num...

    Text Solution

    |

  2. In a class, there are z students. Out of them 'X are boys. What part o...

    Text Solution

    |

  3. Divide 50 into two parts so that the sum of their reciprocals is (1)/(...

    Text Solution

    |

  4. A school group charters three identical buses and occupies (4)/(5) of ...

    Text Solution

    |

  5. 0.bar123 is equal to :

    Text Solution

    |

  6. The sum of three numbers is 2 , the 1 st number is 1/2 times the 2nd n...

    Text Solution

    |

  7. If (1)/(2) is added to a number and the sum is multiplied by 3, the re...

    Text Solution

    |

  8. The decimal fraction 2.3bar49 is equal to

    Text Solution

    |

  9. The value of (1)/(20)+(1)/(30)+(1)/(42)+(1)/(56)+(1)/(72)+(1)/(90) is

    Text Solution

    |

  10. A mason can build a wall in 70 hours. After 7 hours he takes a break. ...

    Text Solution

    |

  11. find the number that is as much greater than 49 as is less than 95.

    Text Solution

    |

  12. The reciprocal of the sum of the reciprocals of (2)/(9) and (7)/(10) i...

    Text Solution

    |

  13. What is the value of ((3)/(5)+(7)/(9))?

    Text Solution

    |

  14. The sum of twice a number and thrice its reciprocal is (25)/(2) . Wha...

    Text Solution

    |

  15. In a college, (1)/(5) th of the girls and (1)/(8) th of the boys took ...

    Text Solution

    |

  16. A fraction is greater than twice its reciprocal by (7)/(15). What is t...

    Text Solution

    |

  17. Convert the 0.0068 Into vulgar fraction :

    Text Solution

    |

  18. If (1)/((3.197))=0.3127 find the value of (1)/((0.0003197))

    Text Solution

    |

  19. Represent the 0.000256 in vulgar fraction.

    Text Solution

    |

  20. In a fraction when 3 is added to its numerator and denominator it beco...

    Text Solution

    |