1.

If the sum of five consecutive even numbers A, B, C, D and E is 130, what is the product of A and E ?

Answer»

660



Let the consecutive even NUMBERS be
 A = 2x, B = 2x + 2, C = 2x + 4, D = 2x + 6 and
 E = 2x + 8
= A + B + C + D + E = 130
= 10X + 20 = 130
∴ x = 130 - 20/10 = 11
Therefore, product of A and E= 22 x 30 = 660



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