What is the digit in the tens place in the product of the first 35 even natural numbers?

Dear Student,
Please find below the solution to the asked query:
$$\begin{gathered} \mathrm{Product} \mathrm{of} \mathrm{first} 35 \mathrm{even} \mathrm{numbers}=2\times 4\times 6\times ...\times 10\times 12\times 14\times ...\times 20\times 22\times 24\times ...\times 70 \\ \mathrm{As} \mathrm{we} \mathrm{can} \mathrm{clearly} \mathrm{see} \mathrm{from} \mathrm{the} \mathrm{expression} \mathrm{that} \mathrm{in} \mathrm{the} \mathrm{product}, \mathrm{there} \mathrm{will} \mathrm{more} \mathrm{than} \mathrm{two} \mathrm{zeroes}. \\ \mathrm{Therefore}, \mathrm{tens} \mathrm{digit} \mathrm{will} \mathrm{be} 0. \end{gathered}$$
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