Question : The minimum period taken up to which the weather variations are considered to predict the climate of a place is _______ years.

Option 1: 20

Option 2: 25

Option 3: 10

Option 4: 30

Question : Solve the following expression.
$50-[20+(30-(25-5))]$

Option 1: 10

Option 2: 30

Option 3: 20

Option 4: 40

Question : The minimum age of the member of the Rajya Sabha is:

Option 1: 25 years

Option 2: 21 years

Option 3: 30 years

Option 4: 35 years

Question : What is the third proportional number to 10 and 20?

Option 1: 30

Option 2: 25

Option 3: 50

Option 4: 40

Question : If the simple interest for 5 years is equal to 25% of the principal, then the interest will be equal to the principal after _______ years.

Option 1: 20

Option 2: 30

Option 3: 25

Option 4: 22

Question : The time required for a sum of money to amount to three times itself at 8% simple interest p.a. will be:

Option 1: 35 years

Option 2: 25 years

Option 3: 30 years

Option 4: 20 years