Lincoln has some blue and yellow bells in a container. of the bells are yellow. After he adds in another 50 yellow bells and removes 84 blue balls, of the bells are yellow. How many bells did he have in the container in the end?

Grandfather collected 60 eggs. He sold 42 of these and gave equally what was left to her 3 grandchildren. How many eggs did each of his grandchild receive ?

Of all the tokens in the box,  are red,  are blue, are green, and the rest are yellow. If 40 green and yellow tokens are in the box, what is the total number of tokens in the box?

Simon had some red and blue balls. There were 7 times as many red as blue balls. 60% of the balls in the box were red balls and the rest were blue balls. After he bought equal number of red and blue balls, of his balls were red. If he had 368 balls at first, how many balls did he buy?

Mr Tan had some sweets. If he were to give 12 sweets to each student, he would need another 38 sweets. If he were to give 14 sweets to each student, he would need another 58 sweets. How many students did Mr Tan have?

Carrie gave 283 beads to Betty. After that, Carrie's mother gave Betty additional 3805 beads. As a result, Betty had 5028 beads. How many beads did Betty have at first?