There are 141 gold balloons and twice as many silver balloons. If the gold and silver balloons were added to 150 black balloons, how many balloons are there in total?
Gold = <<141=141>>141
Silver = 141 * 2 = <<141*2=282>>282
141 + 282 + 150 = <<141+282+150=573>>573
There are 573 gold, silver, and black balloons in total.
#### 573