Percentage (O'level Revision ext)

For one journey from London to Marseille.

There were  $3.08\times10^5$   passengers that made this journey in 2018.This was a 12% decrease in the number of passengers that made this journey in 2017.

  Find the number of passengers that made this journey in 2017.Give your answer in standard form

•  $3.5\times10^5$  

•  $2.71\times10^5$  

•  $2.57\times10^6$  

The price of a newspaper increased from $0.97 to $1.13 .

Calculate the percentage increase.

• 116.5

• 16.5

• 85.8

The price of a book increases from $2.50 to $2.65 .

Calculate the percentage increase.

• 6%

• 106%

• 94%

Work out $1.20 as a percentage of $16.

• 1333

• 0.192

• 7.5

Shona buys a chair in a sale for $435.60 .

This is a reduction of 12% on the original price.

Calculate the original price of the chair.

• 495

• 52.27

• 383

Rowena buys and sells clothes.

She buys a jacket for $40 and sells it for $45.40 .

Calculate the percentage profit.

• 13.5

• 113.5

• 88

Rowena buys and sells clothes.

She sells a dress for $42.60 after making a profit of 20% on the cost price.

Calculate the cost price.

• 8.52

• 35.5

• 213

The price of a house decreased from $82 500 to $77 500.

Calculate the percentage decrease.

• 6.06

• 106.5

• 93.9

Increase $22 by 15%.

• 25.3

• 3.3

• 68.2

Work out $1.45 as a percentage of $72.50 .

• 2

• 1.05

• 5