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We are given that @ (A, B) = A + B and
# (A, B) = A/B
Which of the given choices is not equal to the following?
@ (@ (# (1, 2), 4), @ (4, # (2, 3)))
a. # (3, 1/7)
b. # (7, 1/3)
c. @ (7, # (2, 7))
d. @ (9, # (1, 6))

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GENPACT Other Question
A sum of money at simple interest amounts to Rs.720 after 2 years and to Rs.1020 after a further period of 5 years. The sum is : If a, b and g are the roots of the cubic equation (x - 1) (x2 + x + 3) = 0, then the value of (a3 + b3 + g3 is equal to:

a. -1
b. 9
c. 0
d. 3