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(#M40002714) TCS QUESTION Keep an EYE

On planet korba, a solar blast has melted the ice caps on its equator. 9 years after the ice melts, tiny planetoids called echina start growing on the rocks. Echina grows in the form of circle, and the relationship between the diameter of this circle and the age of echina is given by the formula d = 4*[sqrt(t-9)] for t>9, where d represents the diameter in mm and t the number of years since the solar blast. Jagan recorded the radius of some echina at a particular spot as 7mm. How many years back did the solar blast occur?
a) 17 b) 21.25 c) 12.25 d) 14.05

Asked In TCS preethi poosa (14 years ago)

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(#M40002490) TCS QUESTION Keep an EYE

A hare and a tortoise have a race along a circle of 100 yards diameter. The tortoise goes in one direction and the hare in the other. The hare starts after the tortoise has covered 1/3 of its distance and that too leisurely. The hare and tortoise meet when the hare has covered only 1/4 of the distance. By what factor should hare increase its speed so as the win the race?
(a) 4
(b) 3
(c) 12
(d) 5

Solution

Total circumfrance = pie*diameter
tortoise has covered = 100pie/3
remaining distance = 200pie/3
1/4th of total distance = 25pie
let the velocity of tortoise = u and that of hare =v
on time comparison we get
125pie/3u = 25pie/v
5v=3u so v=3u/5

now for remaining journey time taken by tortoise = 25pie/u
so velocity of hare to make a tie = 75pie u / 25pie
=3u
so 3u/3u/5 = 5 times answer

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Asked In TCS preethi poosa (14 years ago)

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(#M40002483) TCS QUESTION Keep an EYE

Rearrange the alphabets REGHFTYD, find the type of rearranged word belongs to:
(a) Animal
(b) Tree
(c) Bird
(d) Thing

Asked In TCS preethi poosa (14 years ago)

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(#M40002480) TCS QUESTION numbers Keep an EYE

39. Horse started to chase a dog as it relieved stable two hrs ago. And horse started to ran
with average speed 22km/hr, horse crossed 10 mts road and two small pounds with depth 3m,
and it crossed two small streets with 200 mts length. After traveling 6hrs, 2hrs after sunset it
got dog. Compute the speed of dog?

Asked In TCS preethi poosa (14 years ago)

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