Question 1175226
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I will assume from the given numbers that ₵1 = 100 peswas.<br>
You should know how to solve a problem like this using the formal algebraic method the other tutor referred you to.<br>
You can also get valuable mental exercise by solving the problem informally, using logical reasoning and simple arithmetic.<br>
If all 440 coins were 10 peswas, the total value would be ₵44.  The actual total value is ₵60, which is ₵16 more than ₵44.<br>
Each 50 peswas coin has a value of 40 peswas more than each 10 peswas coin.  So exchanging a 10 peswas coin for a 50 peswas coin increases the total value by 40 peswas.<br>
The number of such exchanges that would be required to make up the additional ₵16 is 1600/40 = 40.<br>
So the number of 50 peswas coins is 40; that means there are 440-40 = 400 10 peswas coins.<br>
ANSWER: 40 coins of 50 peswas; 400 coins of 10 peswas.<br>
CHECK: 40(50)+400(10) = 2000+4000 = 6000 (peswas) = ₵60<br>