Ukmt Team Maths Challenge - Regional Final - 2014 Page 21

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B6
UKMT
Sue thinks of a number. When she multiplies it by 7 and adds 3
ukmt
she obtains the same number as if she had multiplied by 2 and
Team Maths
Challenge
added 18.
2014
Regional
What is Sue’s starting number?
Final
Relay
Answer:

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Parent category: Education