The number of terms common between the two series $2+5+8+\cdots$ upto $50$ terms and the series $3+5+7+9+\cdots$ upto $60$ terms.
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The number of terms common between the two series $2+5+8+\cdots$ upto $50$ terms and the series $3+5+7+9+\cdots$ upto $60$ terms.