Sums→x
Products→y
Computer takes 43 nanoseconds to carry out five sums and seven products: 5x+7y=43
It takes 36 nanoseconds to carry out four sums and six products: 4x+6y=36
5x+7y=43
4x+6y=36⇒4x=36-6y
5x+7y=43
x=9-1.5y
5*(9-1.5y)+7y=43⇒45-7.5y+7y=43
x=9-1.5y
0.5y=2⇒y=4
x=9-1.5*4⇒x=3
Computer takes 3 nanoseconds to carry out one sum and 4 nanoseconds to carry out one product.
