Answer: 1,300 red benches
Step-by-step explanation: 2,250 benches (red&blue)
it has more 350 red benches than blue. so, 2,250 - 350 = 1,900 benches
1,900 benches divided by 2 (red&blue) = 950 each benches color
blue = 950 benches
red = 950 + 350 = 1,300 benches