Question

when 75% of a number is added to 75, the result is the number again. Find the number a 200 b 300 (c) 400 (d) 800 .​

Answer 1

Answer:

c) 300

Step-by-step explanation:

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Answer 2

Answer:

(b) 300

Step-by-step explanation:

Let x be the number, and

$\frac{75}{100} x=y$

according to the question,

$y +75=x$ -----------(i)

putting the value of y in (i), we get

$\frac{75}{100} x+75=x$

multiply by 100 on both sides, we get

$100(\frac{75}{100}x+75)=100 x\\\\75x+7500=100x\\\\7500=100x-75x\\\\7500=25x\\\\x=\frac{7500}{25}\\\\x=300$

therefore, required number is x = 300.

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