Respuesta :

apologiabiology
80% mean 80/100=8/10=4/5

4/5 of 40=4/5 times 40/1=160/5=32

answer is 32 quetsions

easier way
10% times 8=80%
10% of 40=4
4 times 8=32



PrettyAwesomeSmart
It's pretty easy to know what Jenny has got correct
Scored= 80%
Questions= 40

80% × 40

80/100 (40)

 80      40
-----    -----
100      1

(4/5) (40/1)


(4) (40)
----------
 (5) (1)

160
-----
  5

= 32

Jenny got 32 questions correct
Hope this helps!