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3 men are running in circle man A run with 20m/hr, man B run
with 40m/hr, man C run with 50 m/hr , and the radius of
cirlce is 200m then at what time they will meet together
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Answer / arun
A=20m/hr
B=40m/hr
c=50m/hr
A takes 10 hr to completly cover the circle i.e 200/20
Likewise B takes 5hr
c takes 4hr
take l.c.m for 10,5,4 i.e 20
Ans is 20
| Is This Answer Correct ? | 12 Yes | 5 No |
Answer / vinod
200m is nt the length of the circle......n wht is lenght of a circle uh? it s d radius......so the total perimeter of the circle is 2*pi*R IE 2*3.14*200==1256m....thy wii all meet after 6280 mts which s divisible by all the three numbers n the person travelling with 20m/h wii take the max time to cover tht dist.....ie 6280/20====314 hrs.......
| Is This Answer Correct ? | 5 Yes | 3 No |
A=20m/hr
B=40m/hr
C=50m/hr
length of circle that is 200.
the circle is 200m
if A take 10hr it reach the circle,
10*20=200 mod 200=0 (here mod is modulus)
if B take 10hr it reach the circle,
10*40=400 mod 200=0
if C take 10hr it reach the circle,
10*50=500 mod 200=100.
so from the above, take 20hr for A,B,C
A=>20*20=400 mod 200=0
B=>20*40=800 mod 200=0
C=>20*50=1000mod 200=0
so all are meet after 20hr.
| Is This Answer Correct ? | 9 Yes | 9 No |
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