IF x is positive,

$(x^y + x^y + ... +x^y)$ has 100 terms and is equal to $x^{y+1}$

What is x?

Hint : Do not try do find out the value of y.

The answer is 100.

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$100x^y=x^{y+1}$ $\Rightarrow 100x^y=x^y\times x$ $\Rightarrow 100=x \color{#0C6AC7} {\text{ [As, }x\neq 0]}$ $\therefore x=\color{#69047E} {\boxed {100}}$