P: Q = 5: 8
Q: R = 12: 7
R:S=14:15
P: S =?
P:Q:R=5 x12:8 x12:8 x7
=60:96:56
=15:24:14
P: Q:R:S = 15 :24:14:15
Hence, P:S=15:15 =1:1
CTET Maths MCQ - Ratio Proportion and Mixture
In 30 L of mixture, milk is 21 L and water is 9 L. Let x L of water needs to be added.
⇒ 147 = 27 + 3x
⇒ 120= 3x
⇒ x = 40L
⇒ 147 = 27 + 3x
⇒ 120= 3x
⇒ x = 40L
If the ratio is 1 : 4, Then the number of defective bulbs = x and number of good bulbs = 4x
∴ x + 4x = 12
⇒ 5x = 12
which is not possible for any integral value of x.
So, 1 : 4 is not possible.
∴ x + 4x = 12
⇒ 5x = 12
which is not possible for any integral value of x.
So, 1 : 4 is not possible.
Let the production of Y =100
Then, production of X =120
Production of Z =150
Required ratio of X, Y and X
=X : Y : Z
=120 : 100 : 150
=12 : 10 : 15
Then, production of X =120
Production of Z =150
Required ratio of X, Y and X
=X : Y : Z
=120 : 100 : 150
=12 : 10 : 15
