Cliff has a bag of tennis balls. 8 are green, 7 are yellow and 5 are white. He picks a tennis ball at random. What is the probability that he picks one that is not green?

To solve this question, we need to know how many balls there are altogether in Cliff's bag. In total, there are 20 balls (8+7+5). We know that 8 of the balls are greens, so by subtraction (20-8) we can tell that the probability of picking a ball that is not green is 12/20. Usually, we try to simplify the fractions as much as possible before presenting it as an answer. In this case, we can divide both top and bottom numbers of the fraction by 4 to get the simplified answer 3/5!

Answered by Kabilan S. Maths tutor

4021 Views

See similar Maths 11 Plus tutors

Related Maths 11 Plus answers

All answers ▸

What is 21.7 × 9.4? A 287.68 E 412.96 B 532.42 C 117.24 D 203.98


How do I do work out the area of a rectangle?


Jim weighs 74.2kg, Connie weighs 67.8kg and Jane weighs 69.4kg. What is the range in their weights?


If there are 24 doughnuts in a box and a bakery store orders 6 boxes. How many doughnuts will they receive?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences