In what ratio must sugar at the rate of Rs.41/kg be mixed with sugar at the rate of Rs.55/kg so that the mixture is worth Rs.49/kg?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 3 : 4.
Let the quantities of Rs.41/kg and Rs.55/kg sugar be in the ratio x : y.
41x + 55y = 49(x + y)
41x + 55y = 49x + 49y
55y − 49y = 49x − 41x
6y = 8x
x/y = 6/8 = 3/4