X and y are 2 different digits if sum of two digit numbers formed by using both digit is perfect square find x +y in understanding way
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Answer:
11
Step-by-step explanation:
Letthetwodigitnumberhasx&yastensandunitdigit
respectively.
Thenthenumberis10x+y.
Soitsreversenumberis10y+x.
Adding,wegetthesum=S=(10x+y)+(10y+x)
⟹S=11x+11y=11(x+y).
∴TomakeSasquarenumbertheleastvalueof(x+y)
shouldbe11sothatS=11×11whichisasquarenumber.
∴(x+y)=11.
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