Latest TCS Aptitude Question SOLUTION: Kate wanted to buy 2 kgs of apples. The vendor kept the 2 kg weights on the right side and weighed 4 apples for that. She doubted on the correctness of balance and placed 2 kg weig

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(#M40024552) TCS Logical Reasoning question Keep an EYE

Kate wanted to buy 2 kgs of apples. The vendor kept the 2 kg weights on the right side and weighed 4 apples for that. She doubted on the correctness of balance and placed 2 kg weight on the left side and she could weigh 12 apples for 2 kgs. If the balance was correct how many apples she would have got

Asked In TCS nikhil pande (11 years ago)

Unsolved Read Solution (13)

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Read Solution (13) :

sruthi  (11 years ago)

let weight of the apple be "a". then intially it would be x+4a=2. when she weighed the equation would be x+2= 12a . solving both equations, a= 1/4.
therefore for 2kg , no. of apples are 2/1/4 = 8 apples.

Is this solution Helpfull? Yes (28) | No (11)  

k.m  (11 years ago)

i think answer is 9 apples.

Is this solution Helpfull? Yes (9) | No (10)  

kalyani dangeti  (11 years ago)

if ...left side wt=4apples+xkg(extra wt)
right side wt=2kg
=>4apples+xkg=2kg......(1)
if..left side wt=xkg+2kg
right side wt=12 apples
=>x+2kg=12 apples .......(2)
by subtracting 2 eq's
4apples+xkg-(xkg+2kg)=2kg-12apples
16apples=4kgs
8apples=2kg...ans=8apples

Is this solution Helpfull? Yes (9) | No (8)  

prem kumar  (10 years ago)

As she got less apples when the weight put on the right side, the left pan has more weight say w kgs.
Now w + 4a = 2
and w+ 2 = 14a
Solving we get a = 2/9 Kgs.
So she gets, 2/(2/9) = 9 apples

Is this solution Helpfull? Yes (7) | No (6)  

Manish Kumar  (11 years ago)

8 apples for 2 kg

Is this solution Helpfull? Yes (6) | No (3)  

sourav  (11 years ago)

pls xplain it properly...what is x??

Is this solution Helpfull? Yes (2) | No (3)  

shiva  (10 years ago)

=>4apples+xkg=2kg
=>x+2kg=12 apples
16apples=4kgs
8apples=2kg...ans=8apples

Is this solution Helpfull? Yes (2) | No (1)  

rohin  (11 years ago)

the ratio of weights should be the same...so 4a/2=2/12a ..so a=0.28 so ax=2 so x=7.14 ie 7

Is this solution Helpfull? Yes (1) | No (5)  

chandrakanth  (9 years ago)

As she got less apples when the weight put on the right side, the left pan has more weight say w kgs.
Now w + 4a = 2
and w+ 2 = 14a
Solving we get a = 2/9 Kgs.
weight of 1 apple is 2/9 kg
for how many apples she will get 2kg ie2/2/9=9

Is this solution Helpfull? Yes | No (1)  

Rupesh  (9 years ago)

As she got less apples when the weight put on the right side, the left pan has more weight say w kgs.
Now w + 4a = 2
and w+ 2 = 14a
Solving we get a = 2/9 Kgs.
So she gets, 2/(2/9) = 9 apples

Is this solution Helpfull? Yes | No (1)  

hari poorna  (8 years ago)

As she got less apples when the weight put on the right side, the left pan has more weight say w kgs.
Now w + 4a = 2
and w+ 2 = 14a
Solving we get a = 2/9 Kgs.
So she gets, 2/(2/9) = 9 apples

Is this solution Helpfull? Yes | No (1)  

praveen  (8 years ago)

Let weight of the apple be "a".
Then initially it would be x+4a=2.
when she weighed the equation would be x+2= 12a .
solving both equations, a= 1/4.
therefore for 2kg , no. of apples are 2/(1/4) = 8 apples.

Is this solution Helpfull? Yes | No   

Girdhari Lal Choudhary  (8 years ago)

left _side right_sid 2 kg 4 apple 1:2 14 apple 2 kg 7:1 (2+7=9 apple) another example left_side right_side 4kg 10apple 2:5 20apple 4kg 10:2 (5+10= 15 apple) (tricky questions.................)

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