Pr
act
iceset
-Ti
meandDi
stance
1.Amandi vi
dedhi sj
ourneyi
ntothr
eepart
sofdistancesof18km,20km and27km.He
t
ravel
ledthesedist
ancesatthespeedof6km/h,5km/ hand9km/hrespect
ivel
y.What
wil
lbehisaveragespeedduri
ngtheenti
rejour
ney?
A) 5.
5km/
h B)3km/
h C)6.
5km/
h D) 10km/
h
2.Aper soncovers40%ofthedi
stancefr
om AtoBatspeedof8km/h,40%oft
he
remainingdi
stanceat9km/handt her
estat12km/
h.Hisaver
agespeedf
orthewhol
e
dist
ancewi l
lbe-
A)9⅜ B) 8⅔ C) 5⅜ D) 7¾
3.Amancover
shal
fofthedi
stanceat40km/
handr
emai
ninghal
fdi
stanceat60km/
h.
Whati
shi
saver
agespeed?
A) 24km/
h B) 48km/
h C)30km/
h D) 22km/
h
4.AandBst artwal
ki
ngi
nthesamedi
recti
onatspeedsof12km/
hand10km/
h
r
espect
ively
.Inhowmuchti
mewil
ltheybe16km apart
?
A) 7h B) 7.
7h C) 8h D) 6h
5.AandBst
artwal
ki
ngi ntheopposi
tedi
rect
ionfrom t
hesamepointwit
ht hespeedsof
12km/
hand10km/ h.Inhowmucht i
mewi ll
theybe66km apar
tfrom eachother?
A) 2h B) 5h C) 4h D)3h
6.Apolicemansawat hi
efatadi
stanceof200m andstart
schasing.Thespeedsofthe
poli
cemanandthethiefar
e12km/ hand10km/ hrespecti
vel
y.Findthedi
stance
tr
avell
edbythet
hiefbefor
eget
tingcaught
.
A) 1km B)100met
re C) 1000km D)1.
5km
7.Astartswalkingatspeedof4km/ handaft
er4hoursBstar
tscycl
i
ngfr
om t
hesame
star
ti
ngpoi ntasthatofAinthesamedir
ecti
onat10km/h.Athowmuchdi
stancef
rom
thestart
ingpointwil
lBcatchupwithA?
A) 26.
67km B)333.
23km C) 12km D)34km
8.Apersoncantravelacer
tai
ndi
stancei
n30hours.Ifhedecr
easeshisspeedby(1/15)
th
ofhisor
igi
nalspeedthenhewouldcov
er10km lessint
hesamet i
me.Findtheusual
speedoftheperson.
A) 10km/
h B) 8km/
h C)5km/
h D)12km/
h
9.Walki
ngwit
h(5/
7)t
hofhi
susual
speedaper
sonr
eacheshi
sof
fi
ce10mi
nlat
e.Fi
ndhi
s
i
nit
ial
time.A)25km/
h B)32km/h C) 24km/h D)12km/ h
10.Acari
srunningat64km/
htocov
eracert
aindi
stancei
n40Mi
n.Atwhatspeedshoul
d
t
hecarruntoreducet
het
imeofi
tsj
our
neyto30mi n?
A)80 B) 85.
33 C)45 D)50
11.Amantakes20mi
nmorei
fhetr
avell
edat60km/ handreaches44minearl
yifhe
t
rav
ell
edat75km/
h.Fi
ndt
hesum ofthedi
stanceandtheori
ginal
speed.
A) 300 B)234 C) 384 D)563
12.Amanst art
eddri
v i
ngfrom hi
shouseataspeedof30km/
handreachedhi
soff
icel
ate
by10mi n.I
fhetravel
l
edat24km/ h,hewoul
dreachhi
sof
fi
cel
ateby18min.Fi
ndthe
di
stancebetweenhishouseandoffi
ce?
A) 13km B) 14km C) 15km D)16km
13.Atrainwit
houtstoppaget
ravel
swithanaver
ageof65km/handwit
hstoppage,
itt
rav
els
wi
thanav eragespeedof52km/h.Forhowmanyminutesdoest
het
rai
nstoponan
av
er ageperhour
?
A)12mi
n B) 13mi
n C) 18mi
n D)20mi
n
14.Asupercari
sstoppedforhal
fanhourandnowi
thastocov
eradist
anceof1500km i
n
t
hegiventi
me.Soitsspeedisi
ncr
easedby250km/h.Fi
ndi
tsusual
speed.
A) 1000km/
h B) 200km/
h C) 550km/
h D)750km/
h
15.Atr
uckcoversadi
stanceof384km atacer
tai
nspeed.I
fthespeedisdecreasedby16
km/hi
twil
ltake2hourstocovert
hesamedist
ance.Fi
nd75%oft heori
ginalspeed.
A) 20km/
h B)48km/
h C) 44km/
h D)30km/
h