11FM - % Increase/Decrease

11FM - % Increase/Decrease

Chapter 2.5

Multiple Choice

Your turn Q1a) Increase 95kg by 60%

• 152kg

• 155kg

• 160kg

• 165kg

Multiple Choice

Your turn Q1b) Decrease 2000L by 28%

• 1800L

• 1654L

• 1440L

• 1300L

Multiple Choice

Your Turn Q2. Saria runs a fashion business. She calculates the selling price of each item of clothing by increasing the cost price by 95%. Find the selling price of a jacket that costs Saria $120. Select the correct working and answer:

• 120 x 95 = $11400

• 120 + 95 = $215

• 120 + 100 + 95 = $315

• 120 x 1.95 = $234

Multiple Select

Your turn Q3. At the "End of Model" sale, Honest John's car yard offer a 30% discount on all cars. Find the sale price of a car that was valued at $39 990. Select all of the correct working methods:

• 39990 x (1-0.3)

• 39990 x 0.7

• 39990 - (39990 x 0.3)

• 39990+30

• 39990 - 30

Multiple Choice

Your turn Q4: Increase 150m by 5%

• 155m

• 157.5m

• 160m

• 165.3m

Multiple Choice

Your Turn Q5: Increase 10L by 33%

• 20L

• 9L

• 12L

• 13.3L

Multiple Choice

Your turn Q6: Decrease 110kg by 4.5%

• 106kg

• 105.05kg

• 112kg

• 103.5kg

Multiple Choice

Your turn Q7: Decrease 840 by 15%

• 620

• 700

• 714

• 750

Multiple Choice

Your turn Q8: Non-essential item in Australia attrack a GST (Goods and Services Tax) of 10%. Find the price, including GST, of a car values at $19,800.

• $21 780

• $22 090

• $29 990

• $30 000

Multiple Choice

Your turn Q9: Ken and Amanda by a house for $64, 000 and sell it 10 year later for a profit of 147%. What is the selling price of the house?

• 64000 x 0.47 = $30,080

• 64000 + 147 = $64147

• 64000 x 1.47 = $94, 080

• 64000 x 147 = $9, 480, 000

Multiple Choice

Your turn Q10: The Luxury Hotel charges an extra 1.5% when you pay using a credit card. Find the total cost of 3 nights' accommodation at $185 per night, which is charged to a credit card.

• 185 x 3 x 1.015 = $563.34

• (185 x 3) +1.15 = $556.15

• 185 x 3 + 1.015 x 3 = $558.05