Maha Bodhi Sch 2007 PSLE Math Prelim Q45

In a frog-leaping competition, for every two leaps made by a big frog, a small frog would have to leap thrice. In a 100-m race, the big frog leapt 50 times.
a) How many times did the small frog leap?
b) How many metres did the small frog move with each leap?

Solution

a)
Big frog ----- small frog
2 leaps ----- 3 leaps
(x 25) 50 leaps ----- 75 leaps (x25)

Answer: The small frog leapt 75 times.


b)
100 m divided by 75 leaps ----- 1 and 1/3 m per leap (Answer)