Question

. A pack of 12 candles costs 36. Find the cost of 19 such candles​

Answer 1

SOLUTION:

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ANSWER:

• The cost of 19 such candles = 57.

GIVEN:

• A pack of 12 candles costs 36.

TO FIND:

• Find the cost of 19 such candles?

SOLUTION:

Let us assume cost of 19 candles be x

FORMULA TO FIND:

$\boxed { \sf \purple{ Product \: of \: means = product \: of \: extremes }}$

SOLVING BY APPLYING THE FORMULA:

=> 12 : 36 : : 19 : x

=> 12 × x = 36 × 19

=> 12x = 684

=> x = 684/12

=> x = 57

hence , The cost of 19 such candles will be 57.

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KNOW MORE:

• Two simple ratios are expressed like a single ratio as the ratio of the product of antecedents to product of consequents and we call it compound ratio.
• The ratio is an ordered comparison of the two quantities.
• Write the number of times of sproket wheel turns for every time the chain wheel rotates. This is called gear ratio.

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Answer 2

GIVEN:

A pack of 12 candles costs 36.

TO FIND:

Find the cost of 19 such candles?

Formula used

Product of means = Product of extreme

SOLUTION:

The cost of 18 candles be x

=] 12 : 36 : : 19 : x

=] 12 × x = 36 × 19

=] 12x = 684

=] x = 684/12

=] x = 57

Hence , The cost of 19 be candles is 57 .