i have to be at a certain place time and find that..., Latest Questions, General Mathematics

Processing math: 100%

Question:I have to be at a certain place at a certain time and find that I shall be 20 minutes too late if I walk at 3 km/hr and 10 minutes too soon if I walk at 4 km/hr. How far I have to walk ?

A 6 km 
B 10 km 
C  $12 1/2$  km 
D  $16 2/3$  km

/139

+ AnswerA

+ ExplanationLet the distance be x km

 $x/3 - x/4 = 30/60 => x/12$ 

 $= 1/2 => x = 6 km$

+ Report

Descriptive on Latest Questions Ebook

Total Preview: 726

Question:I have to be at a certain place at a certain time and find that I shall be 20 minutes too late if I walk at 3 km/hr and 10 minutes too soon if I walk at 4 km/hr. How far I have to walk ?

A 6 km

B 10 km

C 121212 1/2 km

D 162316 2/3 km

A

C $12 1/2$ km

D $16 2/3$ km