Interest, Tax, and Profit Calculations

The video tutorial covers various mathematical concepts including ratios, interest calculations, discounts, sales tax, and value-added tax. It provides examples to illustrate these concepts, such as calculating costs for a school tour, bike price changes, and profit and loss scenarios. The tutorial also explains simple and compound interest, highlighting the differences and providing step-by-step calculations. The lesson concludes with a summary of the key points covered.

What is the ratio of bananas to apples if a basket contains 20 bananas and 30 apples?

• 3:2

• 2:3

• 2:1

• 1:2

Which of the following is NOT an objective of the lesson?

• Define interest

• Calculate compound interest

• Learn about geometry

• Find sales tax

If 40% of students are girls and there are 18 girls, how many students are there in total?

• 45

• 50

• 40

• 60

A bike's price increased by 20% from 45,000. What is the new price?

• 48,000

• 50,000

• 54,000

• 55,000

How do you estimate the amount to be paid after a 10% discount on a bill of 498.20?

• 480

• 470

• 500

• 450

If a shopkeeper buys items for 5 each and sells them for 8, what is the profit percentage?

• 40%

• 50%

• 30%

• 60%

What is the sales tax on a pair of shoes costing 1450 with an 8% tax rate?

• 116

• 120

• 100

• 110

If a washing machine costs 9800 including a 10% VAT, what was the price before VAT?

• 8800

• 8820

• 9000

• 8900

What is the simple interest on 2000 at 6% per annum for 2 years?

• 200

• 220

• 240

• 260

How much more does Harry pay with compound interest compared to simple interest on 24,000 at 5% for 2 years?

• 60

• 50

• 70

• 80