Latest L&T Aptitude Question SOLUTION: If a student decrease his speed by 25% of original seed, he reach school 8 minute late. What is his usual time of reaching school (in minutes)? (A) 28 (B) 30 (C) 20 (D) 24 (E

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(#M40165983) L&T Numerical Ability question Keep an EYE

If a student decrease his speed by 25% of original seed, he reach school 8 minute late. What is his usual time of reaching school (in minutes)? (A) 28 (B) 30 (C) 20 (D) 24 (E) 32

Asked In L&T Devendra Marghade (5 years ago)

Unsolved Read Solution (4)

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Read Solution (4) :

abdul  (5 years ago)

as we know the speed of student is decreased by 25%
so,
Speed left = (overall speed -decreased speed)/(overallspeed)
speed left = 75/100 =3/4.
speed is inversely proportional to time it means, S =1/T
then
3/4s =4/3t
so,
from above question
4t/3-t = 8/60
t=2/5
t= 2/5*60 = 24MINUATEs
hence answer is 24 minuates

Is this solution Helpfull? Yes (7) | No (1)  

Chitranjan kumar singh  (4 years ago)

100t=75t(t-8)
t=24

Is this solution Helpfull? Yes (3) | No (1)  

sairam  (5 years ago)

If he decrases 25% i was 8 minutes lates then in 25 minutes he will walk 8 then for 100 it wiil be 8*4=32

Is this solution Helpfull? Yes (2) | No (4)  

krunal  (4 years ago)

st=s*(75/100)(t+8)
t=3/4(t+8)
4t=3t+24
t=24 min

Is this solution Helpfull? Yes (2) | No   

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