math challenge

How many ten thousands are there in 1 billion?

• 10 000

• 100 000

• 1 000 000

• 10 000 000

twice my number plus 18 equals 76. What is my number?

• 27

• 28

• 29

• 30

Three lights flash at interval of 4,6,9 seconds. They flash together. After how many hours will they flash together again?

• 36

• 37

• 40

• 26

There are 48 pupils in Grade 5 class. If 5/6 of the pupils are below 13 years old,how many are 13 years older?

• 25

• 24

• 8

• 16

In a class of 54 pupils, there are 24 boys. What is the ratio of boys to girls in this class.

• 25:30

• 24:30

• 30:24

• 25;32

A car can run 96 km on 8L of gasoline. How far can it run on 5 liters of gasoline?

• 56

• 60

• 75

• 80

During a sale,blouse marked P275 was bought at 15 percent discount. How much was paid for it?

• 333.75

• 233.75

• 133.75

• 245.75

A cubical lantern needs wire as a frame. If each edge is 25cm, what is the length of wire needed if joints are soldered?

• 150cm

• 200cm

• 250 cm

• 300 cm

Our plane was due at 10:30 am. It was late by 5 hours and 45 minutes. What time did it arrived?

• 3:05

• 4:05

• 4:30

• 4:45

If a triangle has a height of 24 cm and an area of 420square centimeters,what is the length of its base?

• 35cm

• 25cm

• 36cm

• 40cm