Question

It takes me 45 minutes to go to school and I spend 80% of the time travelling by bus. How long does the bus journey last?

Answer 1

80% of 45 minutes is 37.
Mark it best if you want..

Answer 2

Total time taken to reach school = 45min
time taken to travel by bus = 80% of 45 min
                                            = (80/100) × 45
                                            = (8/10) ×45
                                            = 36 min
∴Time taken to travel by bus = 36 minutes