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Oksana_A [137]
3 years ago
15

Ajay bought a fan and a heater for rs 4000. He sold the fan at a profit of a 25% and the heater at a loss of 5%. If he gained 7%

on his total outlay at what price did he buy each item?
Mathematics
1 answer:
Alborosie3 years ago
8 0

Answer: Heater -Rs 2400; Fan- Rs 1600

Step-by-step explanation:

Given

Ajay bought a fan and a heater for Rs 4000

Suppose the price of fan is x and that of heater is 4000-x

Profit on the fan is 0.25x

Loss on heater is 0.05\times (4000-x)

Total profit is 7% i.e. 0.07\times 4000

\therefore 0.07\times 4000=0.25x-0.05(4000-x)\\\Rightarrow 280=0.25x-200+0.05x\\\Rightarrow 480=0.3x\\\Rightarrow x=1600

Thus, the price of heater is 4000-1600=Rs.\ 2400

Price of fan is Rs.\ 1600

Price of heater is Rs.\ 2400

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We can predict the sales representative travelled 8 miles replacing x =8 and we got:

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And we can predict the sales representative travelled 11 miles replacing x =11 and we got:

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Step-by-step explanation:

For this case we have the following data:

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For this case we need to calculate the slope with the following formula:

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