Quiz 1

There are 4 boys and 5 girls in the room. What is the ratio of the number of girls to the total number of children in the room ?

• 4 : 5

• 5 : 4

• 4 : 9

• 5 : 9

What is 30% of $90 ?

• $9

• $27

• $3

• $63

Alice gave an average amount of $435 to her father and mother. She had $250 left. How much money did she have at first ?

• $620

• $685

• $1120

• $1370

The table below shows the scores of 4 girls in a test. Whose score is the closest to the average score of the 4 girls ?

• Alice

• Betty

• Carol

• Dennis

The price of an oven was $900. Mrs Tan bought it at a discount of 20%. How much did she pay for the oven after the discount ?

• $180

• $450

• $720

• $880

What is the volume of the following solid shown below ?

• 9 cm3

• 24 cm3

• 27 cm3

• 36 cm3

The table shows the parking charges at a car park. Mrs Lim parked her car at the car park from 9 a.m. to 11.40 a.m. How much did she have to pay ?

• $3.80

• $4.80

• $5.40

• $5.80

The figure below shows a rectangle ABCD and a shaded triangle DEF. The length of the rectangle is 20 cm and its breadth is 12 cm. Find the area of the shaded triangle DEF.

• 24 cm2

• 48 cm2

• 72 cm2

• 96 cm2

A ribbon of length 8.1 m was cut into 3 pieces. The first piece was 3 times as long as the second piece. The second piece was twice as long as the third piece. How long was the first piece ?

• 0.9 m

• 1.8 m

• 2.7 m

• 5.4 m

Mr. Lee bought a shirt for $45. If he received a 15% discount, how much did he pay for the shirt after the discount?

• $38.25

• $40.50

• $42.75

• $48.75