1. A shopkeeper has 50 bulbs, out of which 45 are non-defective. What is the percent of defective bulbs?

2. The number whose 75% is 18, is?

3. ₹ 7000 is given at 7% p.a. rate of interest. What is the interest received at the end of three years?

4. An item marked at ₹ 9000 is offered in a sale for ₹ 8550. What is the discount percent?

5. Two successive discounts of 20% and 15% are equivalent to a single discount of?

6. 40% of [100 – 20% of 300] is equal to?

7. Sagun lends ₹ 2,88,000 to her friend at the rate of 12% p.a. for 9 months. How much interest will she get?

8. The compound interest on ₹ 5000 at 4% per annum for 2 years compounded annually is?

9. If the selling price of a fan at 5% profit is ₹ 630, then what is its cost price?

10. If an article bought for ₹ 1357 includes 18% GST, then what is the price of the article without GST?