Home
Class 14
MATHS
To do a certain work, the ratio of effic...

To do a certain work, the ratio of efficiency of A to that of B is 3:7.Working together, they can complete the work in `10 1/2` days. They work together for 8 days. 60% of the remaining work will be completed by A alone in :
किसी कार्य को करने में, A की कार्य क्षमता तथा 8 की कार्य क्षमता का अनुपात 3: 7 है | एक साथ कार्य करते हुए, वे इस कार्य को `10 1/2` दिनों में कर सकते हैं | वे 8 दिनों तक साथ कार्य करते हैं | शेष कार्य का 60% हिस्सा A अकेले कितने दिनों में पूरा करेगा ?

A

`6 1/2` days

B

`5 1/2` days

C

5 days

D

4 days

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

To do a certain work, the ratio of the efficiencies of A , B and C is 7 : 5 : 6. Working together, they can complete the same work in 35 days. B and C worked together for 21 days. The remaining work will be completed by A alone in : एक निश्चित कार्य को करने के लिए,A, B और C की कार्य क्षमता का अनुपात 7 : 5: 6 है| एक साथ कार्य करते हुए, वे इसी कार्य को 35 दिनों में पूरा कर सकते हैं | B और C ने 21 दिनों तक कार्य किया | शेष कार्य पूरा करने में A को अकेले कितने दिन लगेंगे ?

The efficiencies of A, B and C are in the ratio 5: 3: 8. Working together they can complete a work in 30 days. A and B worked together for 20 days. The remaining work will be completed by C alone in:

To do a certain work, the ratio of the efficiencies of A and B is 7 : 5. Working together, they can complete the same work in 17(1)/(2) days. A alone will complete 60% of the same work in:

PINNACLE-2018 Main Exam 2nd Shift-EXERCISE
  1. The base of a right prism is a triangle with sides 20 cm, 21 cm and 29...

    Text Solution

    |

  2. A sum lent out at simple interest amounts to Rs. 6076 in 1 year and Rs...

    Text Solution

    |

  3. To do a certain work, the ratio of efficiency of A to that of B is 3:7...

    Text Solution

    |

  4. A and B started their journeys from X to Y and Y to X, respectively. A...

    Text Solution

    |

  5. Study the graph and answer the question that follows. What is the ra...

    Text Solution

    |

  6. The value of ((253)^3+(247)^3)/(25.3xx25.3- 624.91+24.7xx24.7) is 50xx...

    Text Solution

    |

  7. Three solid metallic spheres whose radii are 1cm, x cm and 8 cm, are m...

    Text Solution

    |

  8. A sum of Rs 8400 amounts to Rs 11,046 at 8.75% p.a. simple interest in...

    Text Solution

    |

  9. In triangle ABC, AB=7 cm, BC = 10 cm, and AC = 8 cm. If AD is the ang...

    Text Solution

    |

  10. Let a, b and c be the fractions such that a lt b lt c. If c is divided...

    Text Solution

    |

  11. If x+y+z=11, x^2+y^2+z^2=133 and x^3+y^3+z^3= 881, then the value of r...

    Text Solution

    |

  12. When 12,16,18,20 and 25 divide the least number x, the remainder in ea...

    Text Solution

    |

  13. The value of the expression (cos^6 theta + sin^6 theta - 1)(tan^2 thet...

    Text Solution

    |

  14. The value of (7+8xx8 div 8 of 8+8 div 8xx4 of 4)/(4 div 4 of 4+4xx4 di...

    Text Solution

    |

  15. If sin theta= sqrt 3 cos theta, 0^@< theta< 90^@, then the value of 2 ...

    Text Solution

    |

  16. The ratio of the income of A to that of B is 5:7. A and B save Rs. 400...

    Text Solution

    |

  17. A shopkeeper bought 120 quintals of wheat, 20% of it was sold at 25% l...

    Text Solution

    |

  18. Pipes A, B and C can fill a tank in 30h, 40 h and 60 h respectively. P...

    Text Solution

    |

  19. ((1-tan theta)/(1-cot theta))^2 +1 =

    Text Solution

    |

  20. The value of 22.bar 4+11.5 bar 67- 33.5 bar 9 is:- 22.bar 4+11.5 bar...

    Text Solution

    |