How to find the speed of the car?

 

Important Questions on Compound Measures

MEDIUM

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 27 - Compound Measures>Exercise 1>Q 1

In a super market orange juice is sold in a range of sizes.For each size work out the nearest cent the price for $1 ml$.Which of the size is the best value for money.

Volume	Price
$200 ml$	$40 cent$
$500 ml$	$55 cent$
$1500 ml$	$\$1.50$
$3000 ml$	$\$2.50$

 

EASY

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 27 - Compound Measures>Exercise 1>Q 3

Farzana bought $6$ plants for $\$7.50$.Gary bought $8$ plants for $\$9$.Who got the better deal.
 

MEDIUM

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 27 - Compound Measures>Exercise 1>Q 4

Here, are some jars of jam at different prices.Which jar is the best value for money.

MEDIUM

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 27 - Compound Measures>Exercise 1>Think about

A letter has a mass of $150 gm$.It can be posted for first class $80 cents$ or second class for $68 cents$.Calculate the cost per gram for first and second class post.

MEDIUM

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 27 - Compound Measures>Exercise 1>Q 5

The table shows the population and area of $4$ continents in $2018$.Complete the table.(Round the answer nearest unit)

Continent	Population	Area $\left(k{m}^2\right)$	Number of people per $k{m}^2$
Asia	$4,478,315,164$	$44,579,000$
Africa	$1,284,814,288$	$30065000$	$$
Europe	$739,207,742$	$9,938000$
Australia	$22,301,673$	$7682300$

 

MEDIUM

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 27 - Compound Measures>Exercise 1>Q 6

The table shows the population and area of $4$ continents in $2018$.Complete the table.(Round the answer nearest unit).Which of the continents is the least densely populated.

Continent	Population	Area $\left(k{m}^2\right)$	Number of people per $k{m}^2$
Asia	$4,478,315,164$	$44,579,000$
Africa	$1,284,814,288$	$30065000$	$$
Europe	$739,207,742$	$9,938000$
Australia	$22,301,673$	$7682300$

 

MEDIUM

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 27 - Compound Measures>Exercise 1>Q 6

The table shows the amount of waste(in million tones) and population (in millions) for three countries.Place the countries in order starting with the highest waste per person.

Country	Waste(million tones)	population (in millions)
$A$	$5910$	$19.7$
$B$	$24150$	$60$
$C$	$14720$	$46$

 

MEDIUM

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 27 - Compound Measures>Exercise 1>Q 7

An electric fire uses $18$ unit of electricity over a period of $7.5 hrs$.An electric heater uses $15$ unit of electricity over a period of $6 hrs$.Which one is the most efficient item.