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Numerical Ability
LCM and HCF
alvin rund 48m ahead of ben and 72m ahead of clinton
Read Solution (Total 5)
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- Alvin, Ben, and Clinton run a race, with Alvin finishing 48 meters ahead of Ben,and 72 meters ahead of Clinton while runner Ben finishes 32 meters ahead of runner Clinton. Each runner travels the entire distance at constant speed. What is the length of the race?
option
a. 480
b. 96
c. 192
d. None of these - 10 years agoHelpfull: Yes(6) No(0)
- let whole distance is 'd' and speed of Alvin, Ben, and Clinton is A,B,C,,,
then
A*t=d .... 1
B*t=(d-48).....2
C*t=(d-72).....3
so
from eqt 1,2 & 3
A:B:C::d:(d-48):(d-72).....4
now second condition is..
B:C::d:(d-32)....5
froeqtn 4 and 5..
(d-48)/(d-72)=d/(d-32)...
on solving(or by option) d= 192... - 10 years agoHelpfull: Yes(5) No(0)
- i didn't get the question as it is incomplete
- 10 years agoHelpfull: Yes(2) No(0)
- then what happen?
are they stoped? - 10 years agoHelpfull: Yes(1) No(1)
- lcm of 48 72=144
so he is on 144 m - 10 years agoHelpfull: Yes(0) No(1)
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