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If the price of 5 mangoes and 4 apples is the same as 3 mangoes and 7 apples what is the ratio of mangoes to apples?
Wiki User
∙ 15y ago
The ratio of mangoes to apples is 1.5 (= 3/2, or 1.5:1).
To save a bit of space, let's just write "m" for mangoes and "a" for apples.
Now, the question tells us that "5 mangoes and 4 apples is the same as 3 mangoes and 7 apples". Being lazy and using abbreviations, we can write this as:
5m + 4a = 3m + 7a
We want the ratio of mangoes to apples, so let's put the mangoes on the left and the apples on the right:
5m - 3m = 7a - 4a
The next step is not too difficult:
2m = 3a
Clearly mangoes are more expensive. You can only buy two of them for the price of three apples. Anyhow, we need the ratio of m:a which is another way of saying "m divided by a". We can rearrange the previous equation to say:
m/a = 3/2
Wiki User
∙ 15y ago
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when price decrease purchasing power of the people increases so they can buy more with the same amount of money this is called income effect.if the price of some commodity say mangoes decreases while the price of its substitute like apple remain the same people fell that this commodity is relatively cheaper so they decrease the purchase of apples and buy more of mangoes this is substitution effect.fall in price bring new buyers into the market many people who could not buy at higher price now start buying
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