Teacher Liu gave Xiao Ming money to buy exercise books of 1.4 yuan each, which happened to get back 1 yuan. But Xiao Ming accidentally lost 5 yuan on the way, and it was too late to go home to get the money, so Xiao Ming bought back the same number of exercise books of 1.2 yuan each, and got back 3 yuan. how much
刘老师给钱让小明去买每本1.4元的练习本，正好可以找回l元．但是小明在途中不小心弄丢了5元，又来不及回家取钱，小明就买回了同样本数的每本1.2元的练习本，并找回3元，刘老师当时给小明的钱数是多少元
<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">3 + 4</gadget>
<output>7</output>

<gadget id="calculator">1.4 - 1.2</gadget>
<output>0.2</output>

<gadget id="calculator">7 / 0.2</gadget>
<output>35</output>

<gadget id="calculator">1.4 * 35</gadget>
<output>49</output>

<gadget id="calculator">49 + 1</gadget>
<output>50</output>

<result>50</result>