Find the best solutions to your problems with the help of IDNLearn.com's expert users. Discover in-depth and trustworthy answers to all your questions from our experienced community members.

Two friends, John and Sarah, have restricted permission to share their ages. John is 10 years older than Sarah. If their combined age is 50 years, how old is Sarah?
A. 20 years
B. 25 years
C. 30 years
D. 40 years