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Laabri

Yr9 %'s and SF's - calculators allowed

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Last updated over 2 years ago
25 Nsɛmmisa
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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

What multiplier corresponds to a 27% increase?

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2.

What multiplier corresponds to a 0.5% decrease?

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3.

Find 17% of 200 CHF

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4.

If 14 out of 46 books have been damaged, what percentage are damaged? (round to the nearest %)

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5.

The student population has increased 12% from 850. What is the new population?

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6.

A jacket was reduced in price by 20% and is now 72CHF, what was the original price?

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7.

What is the percentage change when 180 is reduced to 144?

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8.

John has 42CHF left which is 24% of his pocket money - how much did he have originally?

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9.

What percentage of 50 is 30?

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10.

What percentage of 30 is 50? (round to the nearest %)

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11.

If I reduce the price of an article in a shop by 10% and then increase it by 15% and the new price is 62.10CHF, what was the original price? (try using algebra to find the solution)

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12.

Round 2481739 to 2 significant figures

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13.

Round 2009000 to 3 significant figures

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14.

Round 4.0000784 to 3 significant figures

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15.

Round 0.00007825 to 2 significant figures

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16.

There are 40 sweets in a paper bag - there are red, yellow and green sweets.

45% of the sweets are red. How many red sweets are there?

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17.

Pierre bought a bike for 500 CHF.

He wants to sell it with 12% profit. What price does he need to sell it for?

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18.

A watch was reduced by 30% and is now sold for 250CHF. What was the price before the sale? (round to the nearest chf)

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19.

Idan bought a car for car for $4500 and had to sell it for $4000 soon after. Find Idan's % loss to the nearest %.

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20.

A video game is sold for $68 after a 15% discount. Find the marked price of the video game.

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21.

A publisher sells and book to a retailer for $20. The retailer then marks-up the book by 75% and then adds another 17.5% VAT. What price does the customer pay to the nearest $.

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22.

How big was the cupcake before the increase?

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23.

How big were the portion of fries before the increase?

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24.

How much did the jeans cost before the discount?

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25.

How much did the shoes cost before the discount?