Multiple Choice Questions on A room 5 m 44 cm long and 3 m 74 cm broad is to be paved with square tiles Find the least number of ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A room 5 m 44 cm long and 3 m 74 cm broad is to be paved with square tiles Find the least number of ...........

Quantitative Aptitude ( CCS) Mensuration 2D
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    A room 5 m 44 cm long and 3 m 74 cm broad is to be paved with square tiles. Find the least number of square tiles required to cover the floor.

    120

    Incorrect Answer

    145

    Incorrect Answer

    176

    Correct Answer

    185

    Incorrect Answer
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    Explanation:

    Area of the room
    = (544 × 374) cm2 .
    Size of the largest square tile
    = H.C.F of 544 cm and 374 cm = 34 cm.
    Area of 1 tile = (34 × 34) cm2.
    Number of tiles required = (544 × 374/34 × 34) = 176

    By: Amit Kumar
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