3 trucks A B C A loads 10 kg min B loads 13 1 3 kg min C unloads 5kg

if all three work simultaneously, (10+40/3)-5=(70/3)-5=55/3
its given in kilos/minute... in question it will be asked in kilos/hour...
so for 1 hour ther is 60 minutes... so perform (55/3)*60=1100 tonnes filled in one hour
now 1100 filled in 1 hour so 2400 filled in X hour so we have 1100x=2400
so x=2400/1100=24/11.
same sum may be asked with the numbers changed... know the method and do.
11 years agoHelpfull: Yes(27) No(14)
unloading rate is more then combined loading rate of A and B so can't be loaded
11 years agoHelpfull: Yes(6) No(38)
Relative speed with which trucks are loaded with the combined effort of A,B and C is=(10+40/3-5)=55/3 kg

Since,A,B & C can load 55/3 kg in 1 min

therefore," " " " " " 1 " " 3/55

Therefore,they can load 2.4 tonnes=2.4*100 quintals=2.4*100*100 kg in ((3/55)*2.4*10000)/60 hr=240/11 hr=21 hr,4 min and 54 sec(approx)
11 years agoHelpfull: Yes(4) No(8)
a=10
b=13 1/3 which is 40/3
c=5(unloading weight)
a+b-c=10+40/3-5 which is 55/3
1min=55/3 kg
1 kg=3/55
time taken to load 2.4tonnes=2.4*1000*3/55=130 mins=2 hrs 10 mins
5 years agoHelpfull: Yes(2) No(1)
abc/a+b-c this gives the how much they do simultaneously
11 years agoHelpfull: Yes(1) No(9)
simultaneously 1 min's work=(1/10-40/3-1-5)=397/30
work complete in 30/397 min..
for 2.4 tonnes it take (2400*(30/397))=181 min
11 years agoHelpfull: Yes(1) No(21)

3 trucks A,B,C

A loads 10 kg/min
B loads 13 1/3 kg/min
C unloads 5kg/min

If three simultaneously works then what is the time taken to load 2.4 tonnes