Latest IBM Aptitude Question SOLUTION: if 40 people eat in 40 days,30 people in 60 days,then 20 people eat in how many days?

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if 40 people eat in 40 days,30 people in 60 days,then 20 people eat in how many days?

Asked In IBM manu (12 years ago)

Unsolved Read Solution (11)

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Read Solution (11) :

swati  (12 years ago)

40 people=40 days
40-10 i.e 30 people=40+20=60 days
30-10 i.e 20 people=60+20=80 days
Ans:80 days

Is this solution Helpfull? Yes (97) | No (11)  

Aarthikka  (12 years ago)

40 people takes 4O days and 30 people takes 60 days to eat
then it s obvious to say that if 10 more people is reduced then 20 people will take 80 days to eat.

Is this solution Helpfull? Yes (13) | No (1)  

nagesh  (12 years ago)

if 4o people eat in 40 days so total work =40*40=1600
if 30 people eat in 60 days so total work =30*60=1800
so next total work may be 2000 so for 20 people it need 100 days...?

is it wrong...?

Is this solution Helpfull? Yes (7) | No (19)  

Garima  (12 years ago)

Pls check if question is correct.

Is there any addition is stock on daily basis ?

Is this solution Helpfull? Yes (5) | No (7)  

Neha Shahi  (10 years ago)

people will eat in 60 days

Is this solution Helpfull? Yes (1) | No (1)  

Thejasree  (9 years ago)

I think 60 Days if it is wrong plz correct thz

Is this solution Helpfull? Yes (1) | No (1)  

redblood  (9 years ago)

let say d=day p=person
40p=40d(100 % )
30p=60d(50% days increses )
so 25 decresing in p change 50% incresing the d(in %)30p=60d(40+20)
so 50 decresing in p change 100% incresing the d(in %)20=80d(40+40)
so ans is 80
20p=80d

Is this solution Helpfull? Yes (1) | No   

manish kumar rai  (12 years ago)

80.........bocuse 40p=40day

Is this solution Helpfull? Yes | No (8)  

satarupa nag  (9 years ago)

40people in 40days
30people in 60days(40+20)
Therefore,20people in 80days(60+20)

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kota  (8 years ago)

ans:80days

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DEEPAK KUMAR  (8 years ago)

The age of the two friends were in the ration of 6:5. If the sum of their ages is 55. Then after how many years their ratio will become 8:7?
solution- A:B=6:5
11part =55
thn 1 part =5
thn 6part=30 nd 5prt=25
let we 30+x/25+x=8/7
after croos multiplication , 210+7x=8x+200
thn x=10.

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