Xiao Ming plans to use 140 yuan pocket money to buy school supplies for the students in Hope Primary School. If he buys all pens of type A, he can buy 10 pens. If you buy type B pens, each pen will be 6 yuan more expensive. How many Type B fountain pens can this money buy?
小明准备用140元零花钱给希望小学的同学买学习用品，如果全部买A种钢笔可以购买10枝．如果买B种钢笔，每枝就要贵6元．这笔钱可以买几枝B种钢笔？
<gadget id="calculator">140 / 10</gadget>
<output>14</output>

<gadget id="calculator">14 + 6</gadget>
<output>20</output>

<gadget id="calculator">140 / 20</gadget>
<output>7</output>

<result>7</result>