A Sum of Digits | Junior Math Olympiad Training
The Junior Mathematical Challenge (JMC) is a 60-minute, multiple-choice competition for students aged 13 or below created by the UK Mathematics Trust (UKMT).
This is Qu 18 from the JMC 2016 paper.
UKMT aim is to promote a love of problem solving in young people and encourages students to realise the breadth and depth of mathematics.
The problems usually have a certain technique to them so that they can be solved quickly and effectively. This is one such problem. Can you solve it?
Links:
Question Paper: https://www.ukmt.org.uk/sites/default...
UKMT: https://www.ukmt.org.uk
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