Answer: First option is correct.
Step-by-step explanation:
Since we have given that
In Black Diamond Ski
Cost of ski rental = $25
Cost to ski per hour = $10
Let the number of hours be 'x'
so, our equation becomes
[tex]10x+25[/tex]
Similarly, in Bunny hill ski,
Cost of ski rental = $50
Cost to ski per hour = $5
Let the number of hours be 'x'
so, our equation becomes
[tex]5x+50[/tex]
Cost of both ski shop becomes
[tex]10x+25=5x+50\\\\10x-5x=50-25\\\\5x=25\\\\x=\dfrac{25}{5}\\\\x=\$5[/tex]
Hence, First option is correct.