On weekends, Ding Ding walked to his grandfather's house, which was 2 kilometers away. Ding Ding walked 62 meters per minute. After 20 minutes of departure, his grandfather picked up Ding Ding at an average speed of 90 meters per minute. They met on the way in a few minutes ?
双休日，小丁丁步行去相距2千米的爷爷家，小丁丁每分钟行62米，出发了20分钟后，爷爷以平均每分钟90米的速度去接小丁丁，再过几分钟他们在途中相遇？
<gadget id="calculator">2 * 1_000</gadget>
<output>2_000</output>

<gadget id="calculator">2_000 - 1_240</gadget>
<output>760</output>

<gadget id="calculator">62 + 90</gadget>
<output>152</output>

<gadget id="calculator">760 / 152</gadget>
<output>5</output>

<result>5</result>