To answer this question, you need to makes the unit of the smartphone screen same. In this case, phone A is using decimal and phone B is using a fraction. You can use which was easier.
Let's try to use decimal. Then you need to convert phone B fraction width into decimal width. The calculation would be: 5cm + 1/3cm= 5 cm + 0.333cm= 5.333cm
From here it clear that phone B has a wider screen than phone A.
Answer: 1 min 50 sec
Step-by-step explanation:
The range is max value - min value
min value = 14 mins 40 sec
max value = 16 mins 30 sec
so now subtract these 16 mins 30 sec - 14 mins 40 sec
= 1 min 50 sec
10-3 or 10+(-3) that should help
