book Maths Puzzle Numerical Ability

How do find the sum of the Matrices

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book Other Question

Increase revenue. Even though the number of tickets sold for a concert decreases with increasing price, the revenue generated does not necessarily decrease. Use the formula R= p(48 abe bought 72 tickets to see harry potter on broadway
some tickets cost $75.00 and the others cost $85.00
he charged 5520.00 to his american express
how many tickets did he buy at each price

thanks very very much