Elitmus
Exam
Numerical Ability
Time Distance and Speed
In a race of 200 m. A can beat B by 15 m and C by 19 m then how much time C would take To beat B in the race of 3700 m ?
Read Solution (Total 16)
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- In 200 race A:B=200/185 , A:C=200/181
than in 3700m race B beats by C,3700- (181/185)*3700=80 - 9 years agoHelpfull: Yes(19) No(1)
- for 185m B leads C by 4m==> 3700/185=20
20*4=80 - 9 years agoHelpfull: Yes(13) No(0)
- question is wrong..
but if replace C by B in question part..
ans would be 74 mt..
as in this case C will lead B by 4 mt in every 200 mt..
and for 3600 mt C take lead of 72 mt
in last 100 C lead by 2 mt..
therefore total lead is 74 mt..
- 9 years agoHelpfull: Yes(11) No(0)
- A:B:C=200:185:181
we have to find C:B
we can also write C:B as C/A * A/B which is equivalent to 181/200 * 200/185 which is equal to3620
hence B beat C by 3700-3620=80m
- 9 years agoHelpfull: Yes(7) No(1)
- admin plz solve this
- 9 years agoHelpfull: Yes(6) No(0)
- when A run for 200 m.
B run 185 m only.
c run 181 m only.
according to condition given in que. c beat b which looks not possible...
if b beat c then..
when b run for 3700 c run for=181/185*3700=?
so b beat c by=3700-?=answer - 9 years agoHelpfull: Yes(3) No(0)
- I think question will be like this...
in a race of 200 m. A can beat B by 19 m and C by 15 m then how much time C would take To beat B in the race of 3700
for this questions answer will be 74 min .. - 9 years agoHelpfull: Yes(3) No(1)
- Question is wrong.
It would be How much time B would take to beat C ?
A : B = 200 :185
A : C = 200 :181
B : C = 185/200 * 181/200
B : C = 185 : 181
When B covers 185 m , C covers 181 m.
When B covers 3700 m, C covers (181/185)*3700 = 3620 m.
Therefore, B beats C by (3700 - 3620) m = 80 m. - 8 years agoHelpfull: Yes(3) No(0)
- for 200 m B lead C in 4 m
Hece for 200*18.5=3700
lead by 4 meter 4*18.5=74m
- 9 years agoHelpfull: Yes(2) No(1)
- B beats C by 80 mtr
- 9 years agoHelpfull: Yes(2) No(0)
- from given information we get:- Velocity of b(Vb) / Vc= 85/81
now b run 3700m and let it beat c by x meter. than 3700 / (3700-x)= 85/81
hence x= 174.11 m Ans. - 9 years agoHelpfull: Yes(1) No(3)
- For 200 mt. race
A -> B =15 mt.
A -> C =19 mt.
So, B -> C = 19-15 = 4 mt.
since in 200 mt race B -> c =4 mt.
therefore in 3700 mt. ------- = (4/200)*3700 = 74 mt. ans.
- 9 years agoHelpfull: Yes(1) No(0)
- Question is wrong.. it will be how much time B will beat C?
Answer :
80m - 9 years agoHelpfull: Yes(0) No(1)
- Please explain your answer properly to make it approve?
for 200 Metre
a:b:c - 200:185:181
using unitary method
for 3700 M
a:3700
b : (185/200)*3700=3417.5 mtr
c : (181/200)*3700=3348.5 mtr
b - c = 3417.5 - 3348.5 = 69 mtr
ans : 69
- 9 years agoHelpfull: Yes(0) No(5)
- wrong question
- 9 years agoHelpfull: Yes(0) No(1)
- C:B= 181/185; .......so 181/185*3700=20*181= 3620
means B beats by C 3700-3620=80. - 8 years agoHelpfull: Yes(0) No(0)
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