Latest TCS Aptitude Question SOLUTION: Ramu & Sangeetha went for biological analysis to an island which is 34km from their place. They traveled in a boat which went at a speed of 2m/s. when they are in half a distance i

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(#M40003387) TCS Logical Reasoning question Keep an EYE

Ramu & Sangeetha went for biological analysis to an island which is 34km from their place. They traveled in a boat which went at a speed of 2m/s. when they are in half a distance in the boat Sangeetha noted there are 7 leg & 8 leg octopuses under the water. Ramu counted the total number of legs of octopuses and got 54. Sangeetha instantly said I know how many 7 legged octopuses are there under the water. They both reached the island after 20 min they left. How many seven legged octopuses does Sangeetha calculate?
a)2 b)5 c)6 d)7

Asked In TCS richa soni (12 years ago)

Solved Pargat Pal Singh Read Solution (4)

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Read Solution (4) :

Pargat Pal Singh  (12 years ago)

If there are

x no of 7 leg & y no of 8 leg octopuses, then
7x+8y= 54

x can have even values to have final ans as 54 (even no)

so checking values of x = 2,4,6

we find that only x = 2 satisfies given condition for integer values of x and y.

Is this solution Helpfull? Yes (19) | No (2)  

shreyansh jain  (12 years ago)

ans 2
since 2*7=14
54-14=40
which is a multiple of 8.

Is this solution Helpfull? Yes (12) | No   

vignesh  (12 years ago)

multiples of 7(legs) multiples of 8(legs)
7 8
14 16
21 24
28 32
Here only 14legs(multiple of 7)+32legs(multiple of 8)=54legs
So the question is to find the number of 7 legged Octopus.
Then 14/7=2.
Ans:(a)

Is this solution Helpfull? Yes (5) | No (3)  

prachi_21  (11 years ago)

we can do it by options .first option =2
total no of 7legged octopus=2
total legs=7*2
remaining legs=54-14=40
and 40 is divisble by 8 therfore there are (40/8)=5 8legged octopus

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