Posted by che on .
three apples and 2 ponkans cost P51. two apples and 3 ponkans cost P46.50. how much will half a dozen apple and half a dozen ponkans cost?

math 
Steve,
one way:
3a+2p = 51
2a+3p = 46.50
add them up:
5a+5p = 97.50
multiply by 6/5:
6a+6p = 97.0 * 6/5 = 117.00
note that we didn't have to know how much each item cost.
another way:
multiply 1st by 2 and 2nd by 3 to get
6a+4p = 102
6a+9p = 139.50
subtract 1st from 2nd to get
5p = 37.50
p = 7.50
a = 12.00
6a+6p = 72.00 + 45.00 = 117.00 
math 
che,
thanks so much... but what if the cost of each ponkan and apples is asked? what will be the solution?

math 
Steve,
excuse me???
look at the second solution, where I actually figure the cost of each. 
math 
che,
yeah its there...thanks a lot...