2 years ago

the ratio of adults to children is 7:3. based on this ration, if there was 370 people how many where children

1 answer:

6 0

In a ratio of 7:3, for every 7 adults you have 3 children. So 30% of the total are children. I.e. if you have 10 people .7 times (10) are adults or 7 and .3 times (10) are children or 3. So for 370 people, .3 times 370 are children, or 111.

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2 years ago

Sekhar gives a quarter of his sweets to Renu and then gives 5 sweets to Raji. He has

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Answer:

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Step-by-step explanation:

Number of sweet that Sekhar had = x

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Remaining sweets = 7

$x = \frac{1}{4}x +5 + 7\\\\x -\frac{1}{4}x = 12\\\\\frac{4*x}{1*4}x-\frac{1}{4}x = 12\\\\\frac{4x}{4}-\frac{1}{4}x= 12\\\\\frac{3x}{4}=12\\\\x = 12*\frac{4}{3}\\\\x=4*4\\\\x=16$