Question

84 is 24% of what number

Answer 1

84 = n × 24%
84 = n × 0.24 (24% =
`(24)/(100)` = 0.24)
Divide by 0.24 to isolate the unknown number n

`(84)/(0.24) = (0.24n)/(0.24)`
0.24 and 0.24 cancels out
350 = n

Check:
350 × 0.24 = 84

84 is 24% of 350