The human population of Earth in August 2010 was estimatedto be 6859 billion people In August 2009 the population grew at a rate of 113 Assuming thisgrowth rate continues estimate the population of theworld in August of 2020

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 17 - Managing Money>Exercise 17.7>Q 1

The human population of Earth in August $2010$ was estimated to be $6.859$ billion people. In August $2009$ , the population grew at a rate of $1.13 %$ . Assuming this growth rate continues, estimate the population of the world in August of $2025$ .

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 17 - Managing Money>Exercise 17.7>Q 2

In $2010$ there were an estimated $1600$ giant pandas in China. Calculate the likely panda population in $2025$ if there is an annual growth in the population of $0.5 %$ .

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 17 - Managing Money>Exercise 17.7>Q 2

In $2010$ there were an estimated $1600$ giant pandas in China. Calculate the likely panda population in $2025$ if there is an annual decline in the population of $0.5 %$ .

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 17 - Managing Money>Exercise 17.7>Q 3

A population of microbes in a laboratory doubles every day. At the start of the period, the population is estimated to be $1000000$ microbes. Copy and complete this table to show the growth in the population.

Time (Days)	$0$	$1$	$2$	$3$	$4$	$5$	$6$	$7$	$8$
Total number of microbes (Millions)	$1$	$2$	$4$

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 17 - Managing Money>Exercise 17.7>Q 3

A population of microbes in a laboratory doubles every day. At the start of the period, the population is estimated to be $1000000$ microbes. Draw a graph to show the growth in the population over $8$ days.

Time (Days)	$0$	$1$	$2$	$3$	$4$	$5$	$6$	$7$	$8$
Total number of microbes (Millions)	$1$	$2$	$4$

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 17 - Managing Money>Exercise 17.7>Q 3

A population of microbes in a laboratory doubles every day. At the start of the period, the population is estimated to be $1000000$ microbes. Draw a graph to show the growth in the population over $8$ days. Then use the graph to determine the microbe population after $2.5$ days.

Time (Days)	$0$	$1$	$2$	$3$	$4$	$5$	$6$	$7$	$8$
Total number of microbes (Millions)	$1$	$2$	$4$

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 17 - Managing Money>Exercise 17.7>Q 3

A population of microbes in a laboratory doubles every day. At the start of the period, the population is estimated to be $1000000$ microbes. Draw a graph to show the growth in the population over $8$ days. Then use the graph to determine the microbe population after $3.6$ days.

Time (Days)	$0$	$1$	$2$	$3$	$4$	$5$	$6$	$7$	$8$
Total number of microbes (Millions)	$1$	$2$	$4$

MEDIUM

Upper Secondary: IGCSE

IMPORTANT

Cambridge IGCSE® Mathematics Core and Extended Coursebook Second Edition>Chapter 17 - Managing Money>Exercise 17.7>Q 3

A population of microbes in a laboratory doubles every day. At the start of the period, the population is estimated to be $1000000$ microbes. Draw a graph to show the growth in the population over $8$ days. Then use the graph to determine how long it will take the microbe population to reach $20$ million.

Time (Days)	$0$	$1$	$2$	$3$	$4$	$5$	$6$	$7$	$8$
Total number of microbes (Millions)	$1$	$2$	$4$

The human population of Earth in August $2010$ was estimated to be $6.859$ billion people. In August $2009$ , the population grew at a rate of $1.13 %$ . Assuming this growth rate continues, estimate the population of the world in August of $2020$ .

Important Questions on Managing Money

Learn and Prepare for any exam you want !

The human population of Earth in August 2010 was estimated to be 6.859 billion people. In August 2009, the population grew at a rate of 1.13%. Assuming this growth rate continues, estimate the population of the world in August of 2020.

Important Questions on Managing Money

Learn and Prepare for any exam you want !

The human population of Earth in August $2010$ was estimated to be $6.859$ billion people. In August $2009$ , the population grew at a rate of $1.13 %$ . Assuming this growth rate continues, estimate the population of the world in August of $2020$ .