Sandy’s Sports Shop offered its customers a chance to win a new bicycle by guessing how many ping pong balls were in a large jar. Andy guessed 150. Bea guessed 20% higher than Andy. Denys guessed 25% higher than Bea. Emma guessed 20% lower than Denys. Francesca guessed 10% lower Emma. Chandra guessed 50% higher than Francesca. Chandra guessed correctly and won the bicycle. How many ping pong balls were in the jar?

Note: Brain teasers are often open to more than one interpretation, and multiple answers may be possible. Sample solutions are shown.