Question

Sa se afle:
a)5% din 40 m
b)15%din 2500kg
c)12%din 3,6 km
d)25% din 420g
e)120% din 20 de lei
f)75% din 360hl

Answer 1

a) 5%·40g=
=5/100·40=
=5/10·4=
=20/10=
=2g

b)15%2500kg=
=15/100·2500=
=15·25=
=375kg

c)12%·3,6km=
=12/100·3,6=
=43.2/100=
=0,432km

d)25%·420g=
=25/100·420=
=25/10·42=
=1050/10=
=105g

e)120%·20lei=
=120/100·20=
=12/10·20=
=12·2=
=24lei

f)75%·360hl=
=75/100·360=
=75/10·36=
=2700/10=
=270hl