Question

Express the first quantity as a percentage of the second:

$a)48seconds,5mintuesb)63cents,9dollarsc)7mm,2cmd)24mintues,10hours$

Answer 1

a) $48$ seconds, $5$ minutes

$=\frac{48}{5\ast 60}\times 100$

=$16$

b) $63$ cents, $9$ dollers

1 doller=100 cents

9 dollers=900 cents

Ans $=\frac{63}{900}\times 100$

=$7$

c) $7$mm, $2$cm

$1$ cm=$10$ mm

$2$ cm=$20$ mm

Ans $=\frac{7}{20}\times 100$

=$35$

d) $24$ min, $10$ hours

$1$ hour= $60$ min

$10$ hour= $600$ min

Ans $=\frac{24}{600}\times 100$

=$4$.