(
Mixture A of milk and water contains 75% milk while
mixture B of curd and water contains 85% curd in it. 30
litres of mixture A is mixed with 'X' litres of mixture 3
to form a mixture C that contains 18.75% water, then
what is the total quantity of mixture C?
(a) 120 litres (b) 50 litres XC) 80 litres
(d) 100 litres (e) 90 litres
rections (59-63): In the question, two equations I and I
given. You have to solve both the equations to establish
en and y and choose the correc
Answers
Answered by
0
Step-by-step explanation:
Let initial quantity of mixture = x liters
Initial quality of milk = 0.75 x liters
So, 0.75x(1−
x
5
)(1−
x
10
)=0.54x
⇒
100
75
x(
x
x−5
)(
x
x−10
)=
100
54x
⇒25(x
2
−15x+50)=18x
2
⇒25x
2
−375x+1250=0
⇒7x
2
−375x+1250=0
x=
2×7
375±
375
2
−4×7×1250
=
14
375±
140625−35000
=
14
375+325
=
14
700
,
4
150
=50,10.7
∴ Initial quantity of mixture = 50l.
Attachments:
Similar questions