Home
Class 11
MATHS
A student when walks from his house, at ...

A student when walks from his house, at an average speed of 6 kmph, reaches his school ten minutes before the school starts. When his average speed is 4 kmph, he reaches his school five minutes late. If he starts to school every day at 8.00 A.M, then find the time the school gate closes

Text Solution

Verified by Experts

The correct Answer is:
8.40 AM
Promotional Banner

Topper's Solved these Questions

  • TWO DIMENSIONAL ANALYTICAL GEOMETRY

    NCERT TAMIL|Exercise EXERCISE 6.1|16 Videos

  • TWO DIMENSIONAL ANALYTICAL GEOMETRY

    NCERT TAMIL|Exercise EXERCISE 6.2|27 Videos

  • TRIGONOMETRY

    NCERT TAMIL|Exercise EXERCISE 3.12|20 Videos

  • VECTOR ALGEBRA - I

    NCERT TAMIL|Exercise EXERCISE 8.5|25 Videos

Similar Questions

Explore conceptually related problems

Geetha takes 15 minutes from her house to reach her school on a bicycle. If the bicycle has a speed of 2 m/s, calculate the distance between her house and the school.

A swimmer wishes to cross a 500 m wide river flowing at 5 km/h. His speed with respect to water is 3 km/h. Consider the situation of the previous problem. The man has to reach the other shore at the point directly opposite to his starting point. If the reaches the other shore somewhere else, he has to walk down to this point. Find the minimum distance that he has to walk.

A swimmer S is in the sea at a distance dk m from the closest point A on a straight shore. The house of the swimmer is on the shore at distance Lk m from A. He can swim at speed of ukm/h. walk at speed at vkm/h. At what point on shore should he land so that hhe reaches his house in the shortest time.

A commuter train arrives punctually at a station every half hour. Each morning, a student leaves his house to the train station. Let x denote the amount of time, in minutes, that the student waits for the train from the time he reaches the train station. It is known that the pdf of X is f(x)={{:(1/30, 0 lt x lt 30), (0, "elsewhere"):} . Obtain interpret the expected value of the random variable X.

Ganesh is a champion in cricket in his school. When he is in the ground (for practice) and he used to whirl his bat in different style. His coach was Mr. Gunalan. The coach asked Ganesh to hold the bat at its handle and roatate fastly. But Ganesh could not do as his coach said, Ganesh developed pain in his hands. Then his coach told him to rotate the bat by holding it at its mid point. When Ganesh rotated at this position, he was able to rotate the bat faster. Ganesh was surprised and asked his coach how. (i) What was coach's explanation to Ganesh ? (ii) What is Radius of Gyration ? Give an example. (iii) How moment of Inertia is related with Angular velocity ?

A man can swim in still water ast a speed of 3 km/h. He wants to cross a river that flows at 2 km/h and reach the point directly oposite to his starting point. A. In which diretionshoeld he try to swim (that is, find the angle his body makes wilth the river flow)? b. How much time will he take to cross the river if the river is 500 m wide?

NCERT TAMIL-TWO DIMENSIONAL ANALYTICAL GEOMETRY-EXERCISE 6.5 (Choose the correct or more suitable answer)
  1. A student when walks from his house, at an average speed of 6 kmph, re...

    Text Solution

    |

  2. The equation of the locus of the point whose distance from y-axis is h...

    Text Solution

    |

  3. Which of the following equation is the locus of (at^(2),2at)

    Text Solution

    |

  4. Which of the following point lie on the locus of 3x^(2)+3y^(2)-8x-12y+...

    Text Solution

    |

  5. If the point (8,−5) lies on the locus (x^(2))/(16)=(y^(2))/(25)=k the...

    Text Solution

    |

  6. Straight line joining the points (2, 3) and (−1, 4) passes through the...

    Text Solution

    |

  7. The slope of the line which makes an angle 45^(@) with the line 3x-y=-...

    Text Solution

    |

  8. Equation of the straight line that forms an isosceles triangle with co...

    Text Solution

    |

  9. The coordinates of the four vertices of a quadrilateral are (−2,4), (−...

    Text Solution

    |

  10. The intercepts of the perpendicular bisector of the line segment joini...

    Text Solution

    |

  11. The equation of the line with slope 2 and the length of the perpendicu...

    Text Solution

    |

  12. A line perpendicular to the line 5x − y = 0 forms a triangle with the ...

    Text Solution

    |

  13. Equation of the straight line perpendicular to the linex−y+5 = 0, thro...

    Text Solution

    |

  14. If the equation of the base opposite to the vertex (2, 3) of an equila...

    Text Solution

    |

  15. The line (p + 2q)x + (p − 3q)y = p − q for different values of p and q...

    Text Solution

    |

  16. The point on the line 2x − 3y = 5 is equidistance from (1,2) and (3, 4...

    Text Solution

    |

  17. The image of the point (2, 3) in the line y = −x is

    Text Solution

    |

  18. The length of bot from the origin to the line (x)/(3)-(y)/(4)=1 is

    Text Solution

    |

  19. The y-intercept of the straight line passing through (1,3) and perpend...

    Text Solution

    |

  20. If the two straight lines x + (2k − 7)y +3=0 and 3kx + 9y − 5=0 are pe...

    Text Solution

    |

  21. If a vertex of a square is at the origin and its one side lies along t...

    Text Solution

    |