12, 17, 38, 117, ?, 2351

12, 17, 38, 117, ?, 2351

12, 17, 38, 117, ?, 2351

a)            470

b)            490

c)            510

d)            540

e)            450

Sol:

12 * 1 + 5 = 17

17 * 2 + 4 = 38

38 * 3 + 3 = 117

117 * 4 + 2 = 470

470 * 5 + 1 = 2351

quantitative aptitude
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