1.

Four positive integers a, b, c and d have a product of 8! And satisfy ab + a + b = 524 bc + b + c = 146 cd + c + d = 104 then find the value of a – d. (8! = 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8) (1) 4 (2) 6 (3) 8 (4) 10

Answer»

Correct option is  (4) 10



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