Question

39 George's best long jump distance
increased by 10% from 2000 to 2001
and by 20% from 2001 to 2002 what
percent did her best long jump
distance increase from 2000 to 2002?
(a) 15%
(b) 30%
32%
20%
(UNILAG PJ) ​

Answer 1

Answer:

long jump distance in 2000= X

In 2001=X+10%ofX =X+10/100x

=11/10x

In 2002=11/10x+20%of 11/10X

=11/10x+22/100x

=132/100x

increase%=increase/original×100

=132/100X-X/X of 100

=132-100X/100X of 100

=32%

answer-32%