MathRevolution wrote:

John and Tom leave the school at the same time to each of their houses. Does John reach his house faster than Tom?

1) The distance between the school and John’s house is 10km farther than the distance between the school and Tom’s house

2) Tom’s speed is 80% of John’s speed.

Good Question.!!

answer will be C or E.

combining we know that speed of tom (t) = 0.8 John speed =0.8 J

also distance from school to Tom house is = X(let)

then distance of Johns home =x+10

per question is Time taken by John < time taken by TOm ??

as time = Distance / speed

x+10/j < x/0.8j

or is x>40

but we dont know that ie distance betwee tom house to school may be 20 then ans will be No or if distance will be 60 units then ans will be YES

combining is still insuff

Ans E