Mrs Koh bought some tuna and sardine from a fishmonger.the ratio of the mass of tuna to the mass of sardine was 1:2.if she bought a total of 12kg of fishes,find the mass of each type of fish that she bought
4 kg of tuna and 8 kg of sardines
1/3 of the total is tuna and 2/3 is sardines
24
To solve this problem, we can use algebra. Let's assume that the mass of tuna is x kg.
According to the ratio, the mass of sardine would be 2x kg since the ratio of tuna to sardine is 1:2.
Now, let's set up an equation based on the given information. The total mass of fish she bought is 12kg, so we have:
x + 2x = 12
Combining like terms, we get:
3x = 12
To isolate x, we divide both sides of the equation by 3:
x = 12/3 = 4
So the mass of tuna is 4kg. Since the mass of sardine is twice the mass of tuna, the mass of sardine is:
2 * 4 = 8kg.
Therefore, Mrs. Koh bought 4kg of tuna and 8kg of sardine.