solve this puzzle when your free
Answers
Given :-
_+_ = 17
+ +
_+_ = 13
= =
19 15
Solution :-
Let, columns are p,q,r and s .
so,
→ p + q = 17 ------- Eqn.(1)
→ r + s = 13 ------- Eqn.(2)
→ p + r = 19 ------- Eqn.(3)
→ q + s = 15 ------- Eqn.(4)
subtracting Eqn.(4) from Eqn.(1),
→ (p + q) - (q + s) = 17 - 15
→ p - s = 2 --------- Eqn.(5)
subtracting Eqn.(1) from Eqn.(3),
→ (p + r) - (p + q) = 19 - 17
→ r - q = 2 --------- Eqn.(6)
subtracting Eqn.(2) from Eqn.(4),
→ (q + s) - (r + s) = 15 - 13
→ q - r = 2 --------- Eqn.(7)
subtracting Eqn.(2) from Eqn.(3),
→ (p + r) - (r + s) = 19 - 13
→ p - s = 6 --------- Eqn.(8)
as we can see that,
→ Eqn.(5) = Eqn.(8)
but,
→ 2 ≠ 6
and,
→ r - q = q - r = 2 => Not possible .
therefore, question is wrong .
if we change second row add sign into subtraction , we can have a possible solution .
4 + 13 = 17
+ +
15 - 2 = 13
= =
19 15
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Answer:
4+13=17
15-2=13
= =
19 15