Question

A mobile phone gets fully charged in 3 hours and, when
kept idle, it drains 1% of the battery every 9 minutes. If the
completely discharged mobile phone is charged for 2.25
hours and then unplugged and kept idle for 3 hours, what
would be the remaining charge in the phone's battery?
A 20%
B 35%
C 55%
D 75%




plz give me correct and and step by step explanation also​

Answer 1

75 %

is the answer .........

Answer 2

Answer :

C. 55%

Step-by-step explanation:

A phone,

In 3 hours get charged =100%

In 2.25 hours get charged =(100*2.25)/3

=75%

Now,

In 9 min. it drains= 1%

In 3 hours it drains =(3*60/9)*1%

=20%

So,remaining charge =(75-20)%

=55%

I hope that will be helpful dear. Please mark me as a brainliest.