Suman studies for 5 (2/3) hours daily. She devotes 2 (4/5) hours of he

1.	Suman studies for 5 (2/3) hours daily. She devotes 2 (4/5) hours of her time for Science and Mathematics. How much time does she devote for other subject?
Answer» Given Suman studies for 5 (2/3) hours i.e. (17/3) hours And she devotes 2 (4/5) hours i.e. (14/5) hours for Science and mathematics.. Let x be the hours she devotes for other subjects. (17/3) = x + (14/5) x = (17/3) – (14/5) By taking LCM of 3 and 5 is 15 x = (17 × 5 – 14× 3)/15 x = (85 – 42)/15 x = (43/15) = 2 (13/15) hours

Suman studies for 5 (2/3) hours daily. She devotes 2 (4/5) hours of her time for Science and Mathematics. How much time does she devote for other subject?

Answer»

Given Suman studies for 5 (2/3) hours i.e. (17/3) hours

And she devotes 2 (4/5) hours i.e. (14/5) hours for Science and mathematics..

Let x be the hours she devotes for other subjects.

(17/3) = x + (14/5)

x = (17/3) – (14/5)

By taking LCM of 3 and 5 is 15

x = (17 × 5 – 14× 3)/15

x = (85 – 42)/15

x = (43/15)

= 2 (13/15) hours