What number ?

Computer Science Level pending

A is the hundreds, B the tens, C the units.

BA^2= ABC

                 c +b = a
                 c *a  =14

What is a*b-c ?

(AB is not equal to A*B)


The answer is 5.

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1 solution

Hasmik Garyaka
Sep 16, 2017

There is an error in the problem text. Should be b a=14 and a=2, b=7,c=9. We can't solve for c a=14, because c and a are both even or odd as last digits of x and x^2.

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