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lora16 [44]
3 years ago
6

What is 221st number out of 5,6,7,8,9

Mathematics
2 answers:
aksik [14]3 years ago
7 0

Answer:

225

Step-by-step explanation:

d = 6 - 5 = 1 (common differences)

a = 5 (first term)

<u>221st term</u>

a+(n-1)d

5 +(221 - 1) 1

5 + 220 =225

<u>Therefore</u><u> </u><u>the</u><u> </u><u>answer</u><u> </u><u>is</u><u> </u><u>2</u><u>2</u><u>5</u>

svetoff [14.1K]3 years ago
6 0

Answer:

221

Step-by-step explanation:

Given sequence is ,

> 5 , 6 , 7 , 8 , 9.

The common difference is 6-5 = 1 .

Therefore , the 221st number will be

> 221 st term = 221 × 1 = 221 .

<u>Hence</u><u> the</u><u> </u><u>2</u><u>2</u><u>1</u><u> </u><u>st </u><u>term </u><u>is </u><u>2</u><u>2</u><u>1</u><u> </u><u>.</u>

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<h3>What is exponential Growth ?</h3>

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By selling a cow for Rs 144, there is a profit of the same percentage as its cost price. Find the cost price.​
hjlf

Answer:

Step-by-step explanation:

<h2><u>☼︎</u><u>Answer:</u></h2>

The cost price of cow = Rs.80

Explanation:

<h2><u>☼︎</u><u>Given :-</u></h2>

  • By selling a cow for Rs 144, there is a profit of the same percentage as its cost price.
<h2><u>☼︎</u><u>T</u><u>o Find</u><u>:</u><u>-</u></h2>

  • The cost price.
<h2 /><h2 /><h2><u>☼︎</u><u>L</u><u>e</u><u>t</u><u>:</u><u>-</u></h2>

  • The cost price of cow = Rs.x

<h2><u>☼︎</u><u>Solution :-</u></h2>

\sf x + x \: of \: x\%= 144 \\ \\ \sf \implies x + \frac{x \times x}{100} = 144 \\ \\ \sf \implies {x}^{2} + 100x - 14400 = 0 \\ \\ \sf \implies x(x - 80) + 180(x - 80) = 0 \\ \\ \sf \implies x + 180 = 0 \\ \\ \sf \implies x = - 180 \\ \\ \sf \therefore \:  {\boxed{ \sf \pink{x = 80}}}

<h2><u>Hence: </u></h2>

The cost price of cow =<u>R</u><u>s</u><u>8</u><u>0</u>

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