Question

The ratio of student passed to those who failed 9:4 if the number of students failed is 280 find the number of students passed.

Answer 1

$<b>Heya mate. (^_-). Solution below.$
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$<u>Your Question -</u>$

The ratio of students passed to those who failed is 9:4. If the number of students failed is 280, find the number of students passed.

$<u>Solution -</u>$

Let the number of students passed be '9x'.

And, the number of students failed be '4x'.


But, number is students failed = 280

=> 4x = 280
=> x = 280/4
=> x = 70.

So, 9x = 9 × 70 = 630

$<marquee>Hence, the number of students passed = 630</marquee>$
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Thank you. ;-)