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xxMikexx [17]
3 years ago
15

If sp is Rs 115 and profit is Rs 15, find the profit percent

Mathematics
1 answer:
AleksandrR [38]3 years ago
6 0

Answer:

15 % profit

Step-by-step explanation:

CP = SP - profit

= 115 - 15

= 100

Profit% = Profit / CP × 100

= 15 / 100 × 100

= 15%

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Step-by-step explanation:

Since we have given that

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x\pm z\times \dfrac{\sigma}{\sqrt{n}}\\\\=(174.5\pm 2.326\times \dfrac{6.9}{\sqrt{50}})\\\\=(174.5+2.26,174.5-2.26)\\\\=(176.76,172.24)

(b) What can we assert with 98% confidence about the possible size of our error if we estimate the mean height of all college students to be 174.5 centime- ters?

Error would be

\dfrac{\sigma}{\sqrt{n}}\\\\=\dfrac{6.9}{\sqrt{50}}\\\\=0.976

Hence, a) (176.76,172.24), b) 0.976.

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3 years ago
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Step-by-step explanation:

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