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26 December, 20:29

Which of the following is divisible by all of the integers from 1 to 10?

A) 23x34

B) 34x45

C) 45x56

D) 56x67

E) 67x78

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Answers (2)
  1. 26 December, 20:45
    0
    B or C or A or E or D i dont know
  2. 26 December, 21:02
    0
    C.

    Step-by-step explanation:

    The result of the multiplication must end in 0 so A, D nor E are the answer.

    Consider B:

    34 * 45

    Neither of the numbers are divisible by 7 so it's not this one.

    It's C because:

    56 is divisible by 1, 2,4,7,8 and

    45 is divisible by 3, 5, 9

    The factors contain 2 and 3 so its also divisible by 2*3 = 6.

    The product ends in 0 so its also divisible by 10.
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