Tuesday, 8 May 2012

Whose Question 1?

Question 1

The ratio of the number of fishes to the number of frogs in a pond is 3 : 5. After 6 frogs left the pond, there were 6/7 as many fishes as frogs. How many fishes and frogs were there altogether in the pond at first?


To make Frogs equivalent too before the 6 frogs left--->5 x 2 = 10

Therefore, Frogs should have 10 units.

But now, after 6 Frogs had left, it has dropped to 7 units.

10 - 7 = 3 units of frogs left

3 units ---> 6 Frogs
1 unit ---> 6 divide by 3 = 2 Frogs

At first ---> 6 units of fish + 10 units of frogs = 16 units

Total ---> 16 x 2 = 32 Fishes and Frogs

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