Question

3 hours 50 mimute from 3hours 20 minutes

Answer 1

3 hrs 50 min from 3 hrs 20 min will be....

3 hrs 50 min
-3 hrs 20 min
____________
0 hrs 30 min
Hence ans is 30 min
Hope this helps u!!

Answer 2

Question:

3 hours 50 minutes from 3hours 20 minutes

Answer:

$\: \: \: \: \: \: 3 \: hours \: \: 50 \: minutes \\ - \: 3 \: hours \: \: 20 \: minutes \\ ------------ \\ \: \: \: \: \: 0 \: hours \: \: 30 \: minutes$

$30 \: minutes = \frac{30}{60} hours \\ = \frac{1}{2} \: hours \\ = 0.5 \: hours \\ \\ \\ OR \\ \\ \\ 30 \: minutes = 30 \times 60 \: seconds \\ = 1800 \: seconds$