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Yr9 %'s and SF's - calculators allowed

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Last updated almost 2 years ago
25 questions
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Question 1
1.

What multiplier corresponds to a 27% increase?

Question 2
2.

What multiplier corresponds to a 0.5% decrease?

Question 3
3.

Find 17% of 200 CHF

Question 4
4.

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

Question 5
5.

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

Question 6
6.

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

Question 7
7.

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

Question 8
8.

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

Question 9
9.

What percentage of 50 is 30?

Question 10
10.

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

Question 11
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)

Question 12
12.

Round 2481739 to 2 significant figures

Question 13
13.

Round 2009000 to 3 significant figures

Question 14
14.

Round 4.0000784 to 3 significant figures

Question 15
15.

Round 0.00007825 to 2 significant figures

Question 16
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?

Question 17
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?

Question 18
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)

Question 19
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 %.

Question 20
20.

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

Question 21
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 $.

Question 22
22.

How big was the cupcake before the increase?

Question 23
23.

How big were the portion of fries before the increase?

Question 24
24.

How much did the jeans cost before the discount?

Question 25
25.

How much did the shoes cost before the discount?