Question

a box contains one rupee, fifty paise, twenty-five paise coins. The total number of coins is 378. The ratio of their values is 13:11:7 respectively. Find the number of respective coins. If the answer is 78,132,168. Say step-by-step explanations.

Answer 1

Step-by-step explanation:

An easy way to solve such questions is by making a table as above. Just fill in all the details you've got and then proceed. Here I've used blue ink to write all the given details and black ink to solve it.

Assuming all the values to be the exact value as 13,11,7. We can easily predict the no of coins to be 13,22,28 and solve the rest as above.

Answer 2

Answer:

168

Step-by-step explanation:

Total no of coins = 378  

Ratio = 13x : 11x : 7x  

Number of coin ratio,

=  13x * 1+ 11x * 2 + 7x  *4

= 13x : 22x : 28x = 63x  

Now,

$63x = 378 \\ \\x = \frac{378 }{63} \\ \\ x = 6$  

No of 25 paise coins,

$= 28x \\= 28 * 6 \\ = 168$

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