Question

Express:
iii. $90$ cm as a percent of $4.5$m

Answer 1

Step: Expressing the given statement as
percent
Given, $90$ cm as a percentage of $4.5$m.
[Multipy first quantity by 100 and divide by
secound quantity, at the same time write the sign
of percentage]

$\therefore 90$ cm as a percentage of $4.5m=\frac{90}{450}\times 100\%$
(∵1 m = 100 cm)

$\frac{1}{5}\times 100\%=20\%$
Hence, $90$cm is $20\%$ of $4.5$m.