Question : Returns to scale is a

Option 1: timeless phenomenon

Option 2: directionless phenomenon

Option 3: short-run phenomenon

Option 4: long-run phenomenon

Question : Directions: If 2 + 3 + 5 = 30; 3 + 4 + 6 = 72; 5 + 6 + 2 = 60; then 5 + 4 + 0 = ?

Option 1: 40

Option 2: 30

Option 3: 0

Option 4: None

Question : A sum was doubled with a 12.5% rate of simple interest per annum. Then time taken for that sum to be doubled is:

Option 1: $8\frac{1}{2}$ years

Option 2: 8 years

Option 3: 10 years

Option 4: $12\frac{1}{2}$ years

Question : If the momentum of a body is doubled, the kinetic energy is:

Option 1: becomes 1/4 times

Option 2: unchanged

Option 3: doubled

Option 4: becomes 4 times

Question : Directions: If 53 ÷ 31 = 2; 45 ÷ 27 = 1; 69 ÷ 32 = 3; then 97 ÷ 26 = ?

Option 1: 1

Option 2: 2

Option 3: 3

Option 4: 4