There are only 7 blue pens, 4 green pens and 6 red pens in a box. One pen is taken at random from the box. Write down the probability that this pen is blue.

The probability is the likelihood of an event occurring.In this case, 1 pen is being taken out of a bag of; 7 blue pens, 4 green pens and 6 red pens. This means 1 out of 17 (7+4+6) pens will be taken.We are asked to work out the probability this 1 pen is blue. We know there are 7 blue pens in the bag, out of 17 pens in total in the bag. Therefore the probability that a blue pen is picked is 7(blue pens)/17(total pens) = 7/17

JA
Answered by James A. Maths tutor

4424 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

A family go into a shop, they buy three sandwiches and two packets of crisps. It costs them £9. Another family buy five sandwiches and six packets of crisps. It costs them £19. How much does two sandwiches and five packets of crisps cost?


How do we integrate a quadratic equation?


Prove that the composite function fg(2)=-26 where f(x)=3x+1 and g(x)=1-5x


Solve the inequality x^2 + 4x ≥ 77


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences