There are 762 hens in a chicken farm, 23 less than 5 times the number of roosters. How many roosters are raised in the chicken farm?
某养鸡场饲养母鸡762只，比饲养公鸡只数的5倍少23只．养鸡场饲养了公鸡多少只？
<gadget id="calculator">762 + 23</gadget>
<output>785</output>

<gadget id="calculator">785 / 5</gadget>
<output>157</output>

<result>157</result>