David spent 3 h 40 min on his Social studies Project. He spent another 55 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 David took to do Social studies project = 3 h 40 min
Time that David took to do Mathematics project = 55 min
Total time that David spent on both projects
= 3 h 40 min + 55 min
= 4 h 35 min
(b)
Time that David spent on Science project longer than Mathematics project
= 3 h 40 min - 55 min
= 2 h 45 min
Answer(s): (a) 4 h 35 min; (b) 2 h 45 min