TCS Company

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??

Read Solution (Total 9)

a loaded in 1 min =10kg
b loaded in 1 min=40/3kg
c unloaded in 1 min=5kg
so a,b,c are loaded in 1 min=55/3kg
so 1 kg loaded by a,b,c in time =3/55min
now, 2.4 tons loaded by a,b,c in time=(3/55)*2.4*1000=131min is ans...........
that is confirm ans plz ckeck this.
11 years agoHelpfull: Yes(48) No(10)

there should be 85/3 at the place of 55/3....lala
11 years agoHelpfull: Yes(17) No(19)
A=10KG/MIN,B=40/3 KG/MIN,C=-5KG/MIN
SO TOTAL LOAD=55/3 KG/MIN,
2400/(55/3)=131 MIN
11 years agoHelpfull: Yes(16) No(2)
Per min all of them work is (10+13.33-5)=18.33kg/min
Time = (2.4*1000/18.33)min = 130.9min
Answer is 2 Hr 11 Min (app)
11 years agoHelpfull: Yes(7) No(4)
i think rahul is confused
11 years agoHelpfull: Yes(7) No(2)
ans is 84 min and 42 sec explained as-
a loaded in 1 min =10kg
b loaded in 1 min=40/3kg
c unloaded in 1 min=5kg
so in 1 min a,b,c loaded= 85/3 kg
that is 1 kg loaded by all a,b,c in 3/85 min
therefore, 2.4 tons loaded by a,b,c in time=(3/85)*2.4*1000= 84 min 42 sec.
so ans is 84 min 42 sec
11 years agoHelpfull: Yes(4) No(10)
131 min is the answer
11 years agoHelpfull: Yes(3) No(0)
85/3 kg in 1min
1 kg in 3/85
2400 kg in 3/85*2400=84min and 42sec
11 years agoHelpfull: Yes(2) No(9)
@satish plzz check that c unloads @5kg/min
it means loading @ -5kg/min
ur calculation missed -ve sign
so ans=131min
11 years agoHelpfull: Yes(2) No(1)

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