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Percentage Worksheet 3

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1. A computer was bought for $1 890 at a discount of 25%. What was the actual price of the computer? 75% $1 890 Can you find the value of 25% or 1 unit of the cost? Can you find the actual cost of the computer before the discount?

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2. The ratio of the number of men to the number of women in a club is 3:5. If there is a 50% increase in the number of men and a 100% increase in the number of women, what is the new ratio of the number of men to the number of women? 2. The ratio of the number of men to the number of women in a club is 3:5. If there is a 50% increase in the number of men and a 100% increase in the number of women, what is the new ratio of the number of men to the number of women? 3 units 5 units Lets increase the units by 50% Lets increase the units by 100% Can you find the new ratio now?

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3. Mr. Kee paid $125 for a bag. This was 20% of his total expenditure. What was his total expenditure? Expenditure $125 3. Mr. Kee paid $125 for a bag. This was 20% of his total expenditure. What was his total expenditure? Can you solve the sum?

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4. Ian and Ben had $510 altogether. Ian gave 40% of his money to his father and Ben spent 75% of his money. The found they had an equal amount of money left. How much did Ben have at first? How much did Ian give to his father? Lets draw what we know first in a model. Ian 60% Ben 25% Do you notice that the units can be made the same? Can you calculate 100% of Ians and Bens money? Can you solve the sum?

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5. At a sale, a toy was sold for $14. If its usual price was $20, what was the discount percentage? $14$?? $20 Lets put the information in a model. Can we find how much was the discount? To calculate the % discount, we always take the actual price as the base for the calculation. Can you solve it now?

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6. 60% of the participants in a walkathon completed the race. Of those who did not complete the race, 30% were women and 55% were children and the rest were men. 180 women did not complete the race. How many participants took part in the walkathon? 6. 60% of the participants in a walkathon completed the race. Of those who did not complete the race, 30% were women and 55% were children and the rest were men. 180 women did not complete the race. How many participants took part in the walkathon? 60% - completed 40% - did not complete 30%55%?% Can you find how many percent of those who did not complete, were men? If 30% of the women were 180, how many did not complete the race? Can you solve how many took part in the race?

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7. Selvam sells watches at $150 each. He earns a commission of 20% for every watch that he sells. For every 3 watches that he sells, he earns an additional 10% of the commission he receives for the 3 watches. How much commission does Selvam earn for each watch that was sold? How many watches must he sell to earn $2 805? $150 20% $150 20% 10% How much commission does he earn for one watch? How much extra commission does he earn from the commission of the three watches? What is the total commission for the three watches? If he earns $2 805 in commission, can you calculate the number of watches he had sold?

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