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Percentages: Quiz 5
Percentages: Quiz 5
Complete the following calculations without a calculator.
1) Increase 50 kg by 20%
2) Increase £200 by 50%
3) Increase £90 by 15%
4) Increase 5,000 ml by 25%
5) Decreases 850 ml by 20%
6) Decreases £90 by 30%
7) Decreases 900 ml by 70%
8) Decreases £2,500 by 35%
9) I am thinking of going to America. I look at buying my tickets and they cost £500. I wait a week before purchasing the tickets and the cost of the flights have increased by 45%. What is the new cost of the tickets?
10) I purchase a coat in the sale. The original price (non-sale price) of the coat is £200. During the sale, the coat has 26% off it. What is the sale price of the coat?
11) I leave a cup of water that contains 450 ml out in the sun. 65% of the water evaporates. How much water is left in the cup?
12) I am growing some pumpkins. One of the pumpkins on the plant has a mass of 650 g. I check the mass of the pumpkin on the next day and it has increased by 5%. What is the new mass of the pumpkin?
1) Increase 50 kg by 20%
2) Increase £200 by 50%
3) Increase £90 by 15%
4) Increase 5,000 ml by 25%
5) Decreases 850 ml by 20%
6) Decreases £90 by 30%
7) Decreases 900 ml by 70%
8) Decreases £2,500 by 35%
9) I am thinking of going to America. I look at buying my tickets and they cost £500. I wait a week before purchasing the tickets and the cost of the flights have increased by 45%. What is the new cost of the tickets?
10) I purchase a coat in the sale. The original price (non-sale price) of the coat is £200. During the sale, the coat has 26% off it. What is the sale price of the coat?
11) I leave a cup of water that contains 450 ml out in the sun. 65% of the water evaporates. How much water is left in the cup?
12) I am growing some pumpkins. One of the pumpkins on the plant has a mass of 650 g. I check the mass of the pumpkin on the next day and it has increased by 5%. What is the new mass of the pumpkin?