# There are some balls of red, green and yellow colour lying on a table

There are some balls of red, green and yellow colour lying on a table. There are as many red as there are yellow balls. There are twice as many yellow balls as there are green ones. The number of red balls is-

(a) is equal to the sum of yellow and green balls

(b) is double the number of green balls

(c) is equal to yellow balls minus green balls

(d) cannot be ascertained

**Answer: (b) is double the number of green balls**