Question-11212

Question Number 11212 by uni last updated on 17/Mar/17

Answered by mrW1 last updated on 17/Mar/17

2 x = 25 - 5 y = 5 (5 - y)

x = \frac{5 (5 - y)}{2}

5 - y m u s t b e e v e n :

\Rightarrow 5 - y = 2 k, k \in N

y = 5 - 2 k > 0

x = 5 k > 0

0 < k < \frac{5}{2}

\Rightarrow k = 1 o r 2

\Rightarrow y = 3 o r 1

\Rightarrow x = 5 o r 10

s u m o f y^{'} s = 3 + 1 = 4

Facebook Tweet Pin