Rakhi’s mobile number has the following integers :
1, 6, 9, 8, 9, 1, 7, 8, 9

The mode of the above given data is :

1. 1

2. 6

3. 8

4. 9

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)

Asha buys ₹ 20 shares of a company which pays 9% dividend at such a price that she gets a return of 12% on her investment. At what price did she buy each share?

1. ₹ 20

2. ₹ 15

3. ₹ 25

4. ₹ 18

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 : $\sqrt3$