Saira weights 25 pounds more than umbar . if together they weight 205 pounds. what is the weight of saira

To solve this, you can create an equation. Say the weight of Umbar is x, then Saira weighs x+25. Together they weigh 205. So, you get the equation

x+x+25=205

Then solve for x. 

2x+25=205
2x=180
x=90

Then to find Saira's weight, add 25 to Umbar's weight. 

90+25=115.

2/5 * P(2nd red) = 1/7
P(2nd Red) = 1/7 * 5/2
P(2nd Red) = 5/14 or D