Question

45/2 of a number is 45. What percentage of that number is 90​

Answer 1

Here's the required answer to your question

Answer 2

Introduction:

'Percent (%)' means 'out of one hundred':

$\sf{45percent = 45 ~'out ~of~ one ~hundred',}$

$\sf{p~percent~ is ~read ~p ~'percent',}$

$\sf{45percent~= \frac{45}{100} = 45 ÷ 100.}$

Calculate percentage:

'Percentage' is obtained by multiplying 90 by 45%.

$\tt{45percent × 90 =}$

$\tt{(45 ÷ 100) × 90 =}$

$\tt{(45 × 90) ÷ 100 =}$

$\tt{4,050 ÷ 100 = 40.5;}$