Question : The average age of 5 children is 10 years. If two more children of ages 11 years and 16 years join, then what will be the new average age?

Option 1: 11 years

Option 2: 10 years

Option 3: 13 years

Option 4: 12 years

Question : Directions: Which two numbers should be interchanged, to make the given equation correct?
4 × 8 – 12 + 5 = 16

Option 1: 4 and 5

Option 2: 8 and 5

Option 3: 16 and 8

Option 4: 12 and 16

Question : The average of three numbers of which the greatest is 16 is 12. If the smallest is half of the greatest, the remaining number is:

Option 1: 12

Option 2: 8

Option 3: 14

Option 4: 10

Question : If x : y : z = 2 : 3 : 4, then what is the value of 7x : 3y : 2z?

Option 1: $14:9:8$

Option 2: $18:7:12$

Option 3: $12:6:11$

Option 4: $16:9:8$

Question : If p : q : r = 2 : 5 : 3 and r : s = 6 : 5, then what is the value of p : q : r : s?

Option 1: 4 : 12 : 7 : 3

Option 2: 4 : 10 : 6 : 5

Option 3: 6 : 5 : 8 : 10

Option 4: 8 : 12 : 7 : 8