Clothes

Danka and Janka collect clothes. Danka had 9 more than Janka, so she gave her 7. Which now has more cloth and how many?

Correct result:

x =  5

Solution:

d=9+j d2=d−7=9−7+j=j+2 j2=j+7  j2>d2 x=j2−d2=j+7−(j+2) x=7−2=5

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