- A3
- B5
- C7
- D9
Step-by-Step Solution
25th multiple of 3 is 75; its units digit is 5. (The cycle position 25 mod 10 = 5, giving 5.)
Answer: B) 5
A magician asks Priya to pick any number, multiply it by 3, then look at the units digit pattern of multiples of 3: 3, 6, 9, 2, 5, 8, 1, 4, 7, 0.
This cycle of units digits repeats every 10 multiples.
What is the units digit of the 25th multiple of 3?
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