GIVEN:
Capacity of bottle = 1 liter
Vaishali fills 2/5 of the bottle.
Varsha fills 1/5 of the bottle.
Krish drank 1/2 of the bottle.
TO FIND:
Milliliters of water left in the bottle.
SOLUTION :
Total capacity of bottle = 1 liter = 1000 milliliters
Part of bottle filled by Vaishali = 2/5
Part of bottle filled by Varsha = 1/5
Total parts of bottle filled by Vaishali and Varsha = 2/5 + 1/5
= 3/5
total milliliters of water filled = 3/5 of total capacity of bottle
= (3/5 x 1000) milliliters
= 3 x 200 milliliters = 600 milliliters
Part of bottle Krish drank = 1/2
Amount of water Krish Drank = 1/2 of total water filled in bottle
= (1/2 x 600) milliliters
= 300 milliliters
300 milliliters of water is left in the bottle.