Riordan spent 1 h 30 min on his Social studies Project. He spent another 40 min on his Mathematics project.
- How much time did he spend on both projects?
- How much longer did he spend on his Science project than his Mathematics project?
(a)
Time that Riordan took to do Social studies project = 1 h 30 min
Time that Riordan took to do Mathematics project = 40 min
Total time that Riordan spent on both projects
= 1 h 30 min + 40 min
= 2 h 10 min
(b)
Time that Riordan spent on Science project longer than Mathematics project
= 1 h 30 min - 40 min
= 50 min
Answer(s): (a) 2 h 10 min; (b) 50 min