The supply and marketing cooperative purchased 280 kilograms of walnuts, 60 kilograms more chestnuts than walnuts, and 5 times more red dates than chestnuts. How many kilograms of red dates are purchased?
供销社收购核桃280千克，收购的栗子比核桃多60千克，收购的红枣是栗子的5倍．收购红枣多少千克？
<gadget id="calculator">280 + 60</gadget>
<output>340</output>

<gadget id="calculator">340 * 5</gadget>
<output>1_700</output>

<result>1_700</result>