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A student walks from his house at a speed of `2 1/2` km per hour and reaches his school 6 minutes late. The next day he increases his speed by 1 km per hour and reaches 6 minutes before school time. How far is the school from his house? `1 1/4k m` b. `1 3/4k m` c. `2 1/4k m` d. `2 3/4k m`

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Knowledge Check

  • A student walks from his house at 2(1)/(2) km an hour and reaches his school 6 minutes late. The next day he increases his speed by 1 kilometre an hour and reaches 6 minutes early. How far is the school from the house?

    A
    2.5 km
    B
    3 km
    C
    1.75 km
    D
    1 km

  • A student rides on bicycle at 8 km/hour and reaches his school 2.5 minutes late. The next day he increases his speed to 10 km/hour and reaches school 5 minutes early. How far is the school from his house?

    A
    A) `(5)/(8)km`
    B
    B) 8km
    C
    C) 5km
    D
    D) 10km

  • Starting from his house one day , a student walks at a speed of 2(1)/(2) km/hour and reaches his school 6 minutes late .Next day he increases his speed by a km/hr and reaches the school 6 mintues early .How far is the school from his house ?

    A
    1 km
    B
    `1(1)/(2)` km
    C
    `1 (3)/(4)` km
    D
    2 km

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