Question

Copy and complete this table

Capital	Interest rate	Time	Simple interest	Total amount
$200	4%	3 years
	10%	7 years	$700
		4 years	$2800	$9800
	3%		$180	$2180
40,000	2.5%	5 years

Answer 1

(i). $SI=\frac{PRT}{100}=\frac{200\times 4\times 3}{100}=$24$

$Amount=$200+$24=$224$

(ii). $P=\frac{SI\times 100}{RT}=\frac{700\times 100}{10\times 7}=$1000$

$A=$1000+$700=$1700$

(iii). $P=A-SI=$9800-$2800=$7000$

$R=\frac{SI\times 100}{PT}=\frac{2800\times 100}{7000\times 4}=$10\%$

(iv). $P=A-SI=$2180-$180=$2000$

$T=\frac{SI\times 100}{PR}=\frac{180\times 100}{2000\times 3}=3years$

(v). $SI=\frac{PRT}{100}=\frac{40000\times 2.5\times 5}{100}=$5000$

$Amount=$40000+$5000=$45000$