Revision for Percentage

Write 1.5 hours : 30 minutes in the simplest form.

(a)  

Joyce has a ribbon of length 2 m long.

She cuts it into two pieces with lengths in the ratio of 4 : 1.

 

Find the length of the longer piece.

• 160 m

• 1.6 m

• 160cm

• 1.6 cm

Express 25% as a fraction.  

(a)  

Express 120% as a decimal.

(a)  

Express  1/5 as a percentage.

(a)  

Find the new length when 20 m is increased by 15%.

(a)  

James pays $6 less for a football after a 5% discount.

What is the usual price of the football?

• 120

• 114

• 100

• 110

The value of a pair of sneakers increases from 1000 to 1200.

Find the percentage increase in the value of the pair of sneakers.

• 10%

• 200%

• 20%

• 40%

The flight from Singapore to Korea takes 6 hours 10 minutes.

Korea time is 1 hour ahead of Singapore time.

The time in Singapore when the flight leaves is 10 25.

Find the time in Korea when the flight arrives.

• 17 35

• 16 35

• 4.25 p.m.

• 04 25

The price of the gameboard after GST of 9 % is $39.90  

Find the price of the gameboard before GST.

• 30.90

• 36.61

• 36.60

• 43.49