Home
Class 12
MATHS
In a city 20 percent of the population t...

In a city 20 percent of the population travels by car, 50 per cent travels by bus and 10 percent travels by both car and bus. Then persons travelling by car or bus is :

A

80 percent

B

40 percent

C

60 percent

D

70 percent

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • QUADRATIC EQUATIONS AND EXPRESSION

    HIMALAYA PUBLICATION|Exercise Question Bank|129 Videos

  • STATISTICS MEASURE OF DIPERSION

    HIMALAYA PUBLICATION|Exercise QUESTION BANK|28 Videos

Similar Questions

Explore conceptually related problems

Anirudh can row downstream 20km in 2 hours, and upstream 4 km in 2 hours. Find his speed of rowing in still water and speed of the current. OR Adithya travels 300 km to her house partly by bus. She taken 4 hours if she travels 60km by train and the remaining by bus. If she travels 100 km by train and the remaining by bus, she takes 10 min longer. find the speed of the train and the bus separately.

Namita travels 20 km 50 m every day. Out of this she travels 10 km 200 m by bus and the rest by auto. How much distance does she travel by auto?

Formulate the following problems as a pair of equations, and hence find their solutions. Roohi travels 300 km to her home partly by train and partly by bus. She takes 4 hours if she travels 60 km by train and the remaining by bus. If she travels 100 km by train and the reamining buy bus, she takes 10 minutes longer. Find the speed of the train and the bus-separately.

The distance travelled by a motor car in t seconds after the brakes are applied is s feet where s = 22t -12t^(2) . The distance travelled by the car before it stop is

Priya travels 300 km to her home partly by train and partly by bus. She takes 4 hours if she travels 60 km by train and the remaining by bus If she travels 100 km by train and the remaining by bus, she takes 10 minutes longer. Find the speed of the train and the bus separately.

Formulate the following problems as a pair of equations, and hence find their solutions : Roohi travels 300 km to her home partly by train and partly by bus. She takes 4 hours if she travels 60 km by train and the remaining by bus. If she travels 100 km by train and the remaining by bus, she takes 10 minutes longer. Find the speed of the train and the bus separately.

Formulate the following problems as a pair of equations. Roohi travels 300 km to her home partly by train and partly by bus. She takes 4 hours if she travels 60 km by train and the remaining by bus. If she travels 100 km by train and the remaining by bus, she takes 10 minutes longer. Find the speed of the train and bus separately.

A car is moving with the accelaration 2 m/ s^(2) from rest. Find the distance traveled by the car in 10th second.

HIMALAYA PUBLICATION-SETS,RELATIONS AND FUNCTIONS-QUESTION BANK
  1. Consider n(U)=20 , n (A) =12, n(B)=9, n(A nn B) =4, where U is the uni...

    Text Solution

    |

  2. A class has 175 students. The following data shows the number of stude...

    Text Solution

    |

  3. In a city 20 percent of the population travels by car, 50 per cent tra...

    Text Solution

    |

  4. If A and B are not disjoint sets, then n(A uu B)=

    Text Solution

    |

  5. In a college of 300 students , every student reads 5 newspapers and ev...

    Text Solution

    |

  6. Two finite sets have m and n elements. The number of subsets of the fi...

    Text Solution

    |

  7. If f(x)=(a-x^(n))^(1 / n), then f(f(x))=

    Text Solution

    |

  8. If f: (R) rarr (R) and g (R) rarr (R) defined by f(x)=2x+3andg(x)=x^(2...

    Text Solution

    |

  9. If f(x)=2 x^(2)+x+1 and g(x)=3 x+1 then f o g(2)

    Text Solution

    |

  10. Two functions f: R rarr R and g: R rarr R are defined by f(x) = {...

    Text Solution

    |

  11. If f(x)=(25-x^(4))^(1 / 4) for 0ltxltsqrt(5), then f(f((1)/(2)))=

    Text Solution

    |

  12. If x ne 1 and f(x)=(x+1)/(x-1) is a real function then f(f(f(2))) is

    Text Solution

    |

  13. If f(x)=(2 x+1)/(3 x-2), then f o f(2) is equal to

    Text Solution

    |

  14. If the functions f, g, h are defined from the sets of real numbers R t...

    Text Solution

    |

  15. If f: (R) rarr (R) and g (R) rarr (R) defined by f(x)=2x+3andg(x)=x^(2...

    Text Solution

    |

  16. Let g(x)=1+x-[x] and f(x)={:{(-1","x<0),(0","x=0),(1","x>0):} Then fo...

    Text Solution

    |

  17. If g(f(x))=|sin x| and f(g(x))=(sin sqrt(x))^(2) then

    Text Solution

    |

  18. Prove that cos ^(2) x + cos ^(2) (x + (pi)/(3) + cos ^(2) (x - (pi)/(...

    Text Solution

    |

  19. If e^(f(x))=(10+x)/(10-x), x in(-10,10) and f(x)=k f((200 x)/(100+x^(...

    Text Solution

    |

  20. Let f(x+(1)/(x))=x^(2)+(1)/(x^(2)), x ne 0, then f(x)=

    Text Solution

    |