1.

A cat takes 7 steps for every 5 steps of a dog, but 5 steps of a dog are equal to 6 steps of cat.What is the ratio of speed of cat to that of dog?

Answer»

`24:25`<BR>`42:25`
`24:19`
`25:42`

Solution :
But the length of5 steps of dog = length of 6 steps of CATS
It means the ratio of length covered by dog is to cat = 6/5
Therefore, in each step a dog will cover 6/5 times distance than that of a cat.
Thus the ratio of ACTUAL SPEED of cat is to dog < br> = 7 : 5 xx 6/5 = 7 : 6
Alternatevily Actual speed of A : B
= (Given speed of A)/(no. of steps of A in terms of length )
(Given speed of B)/(no. of steps of B in terms of length)
CAT : DOG = 7/6 : 5/5 = 7:6


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