Class : Class 9
D is the correct answer.
At first milk is 40 L and water is 20 L
To set new proportion of 1:2, we have to add 60 L of water in milk.
Class : Class 7
If ‘x’ is the common multiple, then the quantity of milk = 2x and quantity of water = xSo, 2x x = 60 litres3x = 60Or x = 60⁄3 = 20So, quantity of milk = 2x = 40 litres and quantity of water = x = 20 litresLet ‘y’ be the quantity of water to be added. So, quantity of water = (20 y)Then, 40 : (20 y) = 1 : 22 x 40 = 1(20 y)80 = 20 y20 y = 80So, y = 80 - 20 = 60Answer-(D) 60 litres
Post Your Answer
Post Your Answer
Post Your Answer
Post Your Answer
Post Your Answer
Post Your Answer
Post Your Answer
Post Your Answer
Ans 1:
Class : Class 8
5 years ago trishikas age is 10 yrs
jay is 3x*10=30x
present age of trishika is 15 yrs and jay is 30x +5
after 3 yrs trishika is 18 and jay is 30x+8
total age = 30x+8+18=30x+26
Pravir
Ans 2:
Class : Class 8
5 years ago trishikas age is 10 yrs
jay is 3x*10=30x
present age of trishika is 15 yrs and jay is 30x +5
after 3 yrs trishika is 18 and jay is 30x+8
total age = 30x+8+18=30x+26
Pravir
Ans 4:
Class : Class 4
5 years ago, Trishika was 10 yrs old. Then, Jay was 3 x (10) yrs old = 30x 3 years after means 8 years after. Trishikaâs age = 10 8 = 18 yrs. Jayâs age = (30x) 8 yrs. Total = 18 (30x) 8 = 26 30x Answer-(D) (26 30x) years old