Question

Suman studies for 5 2/3 hours daily. She devotes 2 4/5 hrs of her time for Science and
mathematics. How much time does devote for other subjects?

(A) 2 13/15 hrs (B) 2 14/15 hrs
(C) 2 13/12 hrs ℎ(D) None

Answer 1

Answer:

Option(A)

Step-by-step explanation:

Total time Suman studies = 5 (2/3) = 17/3 hours

Time devoted for science and mathematics = 2 (4/5) = 14/5 hours.

The time he devoted for other subjects:

= (17/3) - (14/5)

= (17 * 5) - (14 * 3)/15

= (85 - 42)/15

= 43/15

= 2 (13/15) hours.

Therefore, the time he devote for other subjects = 2(13/15) hours.

Hope it helps!

Answer 2

convert the following into improper fraction:
5 2/3h=17/3h ;2 4/5h=14/5
to find time spent on other sub u have subtract them;MAKE DENOMINATORS SAME BY TAKING L.C.M.
L.C.M=15
17/3=85/15
14/5=42/15
now subtract 85-42/15
=43/15=2 13/15
opt -A is the ans