If the physical education teacher goes to the store to buy 6 footballs and 3 basketballs, he will pay 381 yuan; if he buys 10 footballs and 5 basketballs, he will have to pay how much.
体育老师到商店买6个足球和3个篮球，要付381元；买10个足球和5个篮球则要付多少元．
<gadget id="calculator">381 / 3</gadget>
<output>127</output>

<gadget id="calculator">127 * 5</gadget>
<output>635</output>

<result>635</result>