There are 5 red balls and several blue balls in a bag, the probability of drawing a red ball is (1/3). How many balls are there in total in the bag?
袋子里装有5个红球，若干个蓝球，其中摸出红球的可能性是(1/3)．袋子里一共有多少个球？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">5 / (1/3)</gadget>
<output>15</output>

<result>15</result>