Subject

    মানসিক দক্ষতা

    Topic

    সমস্যা সমাধান

    John, twelve years old, is three times as old as his brother. How old will John be when he is twice as old as his brother?

    ক)
    15
    খ)
    16
    গ)
    18
    ঘ)
    20

    Explanation

    16 John's brother is 4. In 4 years the brother will be 8, and John will be 16 or twice as old.

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