Question 736645
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john has twice the number of quarters as dimes. the amount of money in$1.80. find the number of dimes
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        This problem is easier to solve mentally than using equation/equations.



<pre>
According to the problem, we can group coins in sets, placing two quarters and one dime in each set.


Then each set is worth  2*25 + 10 = 50 + 10 = 60 cents,

and there are  180/60 = 3 such sets.


Hence, the number of dimes John has is 3.    <U>ANSWER</U>
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Solved.