Katie, Jackie and Charlie bake cookies. Katie has baked 8 more cookies than Charlie. Jackie has baked 5 more cookies than Katie. Altogether they have baked 72 cookies. How many cookies did Jackie bake?

K = C + 8 → C = K - 8

J = K + 5

J + K + C = 72

(K + 5) + K + (K - 8) = 72

3K - 3 = 72

3K = 75

K = 25

J = 25 + 5 = 30

C = 25 - 8 = 17

IJ
Answered by Ina J. Maths tutor

2270 Views

See similar Maths 11 Plus tutors

Related Maths 11 Plus answers

All answers ▸

Which of the following is the most likely weight of a bag of flour? A 2 g B 2 litres C 2000 kg D 200 mm E 2 kg


What is 2/7 of 70


If y = 15 + 5(x + 2), and x = 6, what is y?


write 17/3 as a proper fraction


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 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences