The sum of two whole numbers is 18 and their product is 45, the numbers are :

1. 15 and 3

2. -15 and -3

3. -15 and 3

4. 15 and -3

The lengths of a rectangle is 3 m more than its width. If its area is 180 m²; the length of the rectangle is :

1. 12 m

2. 9 m

3. 15 m

4. 10 m

One pipe can fill an empty cistern in 3 hrs less than the another pipe. When both the pipes are opened together, the empty cistern is filled in 2 hrs. The second pipe will fill the empty cistern in :

1. 3 hrs

2. 6 hrs

3. 1 hr

4. 5 hrs

The sum of the ages of Rohan and his father is 35 years, whereas the product of their ages is 150.

Assertion (A) : Rohan's age is 5 years.

Reason (R) : If Rohan's age is x years then x(35 - x) = 150

option

1. A is true, R is false.

2. A is false, R is true.

3. Both A and R are true and R is correct reason for R.

4. Both A and R are true and R is incorrect reason for R.