Question

How much more time did Maria spend doing research than checking email ?

Doing research = 30%
Using email = 15%

Answer 1

we have been asked to find

How much more time did Maria spend doing research ?

Maria spends doing research = 30%
and using email = 15% of a day (24 hours)

Time spent on research = 30% of 24 =
`(30)/(100) *24= 7.2`

Time spent on checking email = 15% of 24 =
`(15)/(100) *24= 3.6`

so,
`7.2 - 3.6 = 3.6`

Hence , Maria spends 3.6 hours more on doing research than checking email.