7) If 24x is multiple of 3 where x is a digit.
What is the value of x?
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2
Answer:
Since 24x is a multiple of 3, its sum of digits 6 + x is a multiple of 3; so 6 + x is one of these numbers: 0, 3, 6, 9, 12, 15, 18, ... . But since x is a digit, it can only be that 6 + x = 6 or 9 or 12 or 15.
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Step-by-step explanation:
24x * 3 = 0
24x = 3
x = 3/24
x = 1/8
hope it helps you
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