Question : The compound ratio of the inverse ratio of the ratios $x:yz, y:xz$ and $z:xy$ is:

Option 1: $1:xyz$

Option 2: $xyz:1$

Option 3: $1 : 1$

Option 4: $x:yz$

Question : Two vessels contain milk and water in the ratios 3 : 2 and 7 : 3. Find the ratio in which the contents of the two vessels have to be mixed to get a new mixture in which the ratio of milk and water is 2 : 1.

Option 1: 2 : 1

Option 2: 1 : 2

Option 3: 4 : 1

Option 4: 1 : 4

Question : In two types of brass, the ratios of copper to zinc are 8 : 3 and 15 : 7, respectively. If the two types of brass are melted and mixed in the ratio 5 : 2, a new type of brass is obtained. The ratio of copper to zinc in this new type of brass is:

Option 1: 3 : 2

Option 2: 2 : 3

Option 3: 3 : 4

Option 4: 5 : 2

Question : If D and E are the mid-points of AB and AC respectively of $\triangle$ABC then the ratio of the areas of $\triangle$ADE and square BCED is:

Option 1: 1 : 2

Option 2: 1 : 4

Option 3: 2 : 3

Option 4: 1 : 3

Question : Three containers have their volumes in the ratio 3 : 4 : 5. They are full of mixtures of milk and water. The mixtures contain milk and water in the ratios (4 : 1), (3 : 1), and (5 : 2), respectively. The contents of all these three containers are poured into a fourth container. The ratio of milk and water in the fourth container is:

Option 1: 4 : 1

Option 2: 151 : 48

Option 3: 157 : 53

Option 4: 5 : 2

Question : Direction: Which one of the given responses is the meaningful order of the following?

1. Infancy     2. Adult      3. Puberty       4. Childhood

Option 1: 1, 2, 3, 4

Option 2: 1, 4, 2, 3

Option 3: 1, 3, 4, 2

Option 4: 1, 4, 3, 2