Multiple Choice Questions on A rectangular courtyard 140cm long 525cm wide is to be paved exactly with square tiles all of t........... for CAPF (AC) Exam Preparation

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Multiple Choice Questions

A rectangular courtyard 140cm long 525cm wide is to be paved exactly with square tiles all of t...........

Quantitative Aptitude( Paper-I ) LCM, HCF
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    A rectangular courtyard 140cm long 525cm wide is to be paved exactly with square  tiles, all of the same size. what is the largest size of the tile which could be used for the purpose?

    64cm

    Incorrect Answer

    35cm

    Correct Answer

    21cm

    Incorrect Answer

    28cm

    Incorrect Answer
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    Explanation:

    30 cm = 4 × 5 × 7
    525 cm = 5 × 5 × 3 × 7
    Hence common factors are 5 and 7
    Hence LCM = 5 × 7 = 35

    Hence, option 2 is the correct answer.

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