Copyright © University of Cambridge. All rights reserved.

'Nine, Ten and One' printed from http://nrich.maths.org/

Show menu

See all short problems arranged by curriculum topic in the short problems collection

Suppose that e, i, n and t represent different positive whole numbers such that

n + i + n + e = 9
t + e + n = 10
and
i = 1

What is t?
 
If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.  

This problem is taken from the UKMT Mathematical Challenges.