Question

Kerry gave 35% of her salary to her mother. Her mother kept 40% of the sum she was given and spent the rest. What percentage of Kerry’s salary had her mother spent?

Answer 1

21%

Explanation:

Kerry's salary = x

Amount given to her mother = 35% of x = 0.35x

Percentage of Kerry's salary spent by her mother = (100-40)% of 0.35x

= 60% of 0.35x

= 0.6 * 0.35x

= 0.21x

`=(21)/(100)x`

= 21% of x

=21 % of Kerry's salary