# GATE2015 EC-2: GA- 8

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A tiger is $50$ leaps of its own behind a tree. The tiger takes $5$ leaps per minute to the deer's $4.$ If the tiger and the deer cover $8$ meter and $5$ meter per leap respectively, what distance in meters will the tiger have to run before it catches the deer$?$
• 🚩 Edit necessary | | 💬 “it is "behind a deer" and not tree”
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edited
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Why and what is the use of the tree.

Tiger covers $40$ meter/minute
Deer covers $20$ meter/minute
Relative speed of tiger is $20$ meter/minute

Deer is ahead of the tiger by $50\times 8=400$ meters
Time taken $=400/20=20$ minutes
In 20 minutes tiger covers $20\times 40=800$ meters

Correct Answer: $800$

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third line in the solution should be 'relative speed'.  correct it please
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Tiger (runs) -->                                 Deer (runs) --->

Tiger----------------------------------------Tree--------------------------Tiger catch Deer (here)

|---------------------50 Leaps --------------|-------------x m-----------|

50*8 = 400 m .

|--------------------------------------------400 + x -------------------------|

Tiger(speed)=8*5=40m/s

Deer(speed)=5*4=20m/s

after t time tiger catch deer

t=(400+x) / 40 (tiger)

t=x / 20 (deer)

(400+x) / 40 = x/20

x=400

total time to catch deer = 400+x

= 400 + 400

= 800

its 800 meters....

edited
Tiger’s speed = (8 meter) * (5leaps) = 40m/minute

Deer’s speed = 20 m/minute

40t = 400 + 20t $\rightarrow t=20minutes$

Since, tiger’s speed * t = distance covered by tiger

Therefore distance covered by tiger = 40m/min * 20min = 800m

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