Question 54

What is the digit in unit's place of the product $$51 \times 52 \times 53 …… 59$$ ?

Solution

Expression : $$51 \times 52 \times 53 …… 59$$

The above set of number contains 52 (or any even number) and 55 and the unit's digit of their product is 0.

Thus, the digit in unit's place of the product $$51 \times 52 \times 53 …… 59=0$$

=> Ans - (A)

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