A and B opened a recurring deposit account in a bank which is paying simple interest at 9% per annum. A deposited ₹ 1,500 for one year and B deposited ₹ 1,200 for 15 months. The amount invested by :

1. A is ₹ 27 more than B

2. A is ₹ 300 more than B

3. A is ₹ 300 less than B

4. Both A and B are same (₹ 18,000)

Find the equation of a line whose y-intercept is 6 and is parallel to x-axis.

1. y = 6

2. x = 6

3. x + y = 6

4. y − x = 6

The total surface area of a solid sphere (S₁) and a solid hemisphere (S₂), as shown in the diagram, are equal. The ratio of radii R and r is :

1. 1 : 1

2. 2 : 1

3. $\sqrt3$ : 2

4. 2 : $\sqrt3$

In the given diagram, O is the centre of the circle and ABCD is a cyclic quadrilateral. If ∠CDE = 65°, then the value of x is :

1. 32.5°

2. 65°

3. 115°

4. 130°