How do you solve this sum? I buy 1 large pack of batteries for £5 and 2 small packs priced at £2 per pack. What is the average cost of a battery across 3 packs?
in Word Problem Answers by
The question needs to state how many batteries there are in each pack.

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

Let the number of batteries in a large pack be m and n in that of a small pack

Average cost of a battery= Total cost/Total number of batteries

                                        =(£5+£2 £2 )/m+n+n=£9/(m+2n)

by Level 7 User (29.3k points)

Related questions

1 answer
asked Mar 16, 2013 in Word Problem Answers by anonymous | 11.9k views
Welcome to, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!
86,325 questions
92,376 answers
23,935 users