(x + 3), 1, (3x − 7) and −5 are in proportion. The value of x is :

1. −1

2. 1

3. −5

4. 5

The marked price of a refrigerator is ₹ 12,000 and GST paid by the customer is ₹ 2,160. The rate of GST is:

1. 5%

2. 12%

3. 18%

4. 28%

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