Book Maths Puzzle General Mental Ability

John likes 400 but not 300, he likes 100 but not 99, he likes 3600 but not 3700. What number does John like ?

Read Solution (Total 2)

1100 i dont know
10 years agoHelpfull: Yes(0) No(3)

900 i dont know how
10 years agoHelpfull: Yes(0) No(0)

Book Other Question

If one vehicle is going eastbound at 20 mph, and another vehicle is traveling westbound at 55 mph, how many seconds would it take the car going eastbound to turn around and catch up to the westbound car ? I am having trouble with the array method. The two fractions are 4 and 1/2 and 5 and 1/3. I did it the traditional way and got 24. But I am having trouble with the array method.