64, 32, ?, 120, 420, 1890

64, 32, ?, 120, 420, 1890

64, 32, ?, 120, 420, 1890

a)            32

b)            80

c)            16

d)            33

e)            48

Sol:

64*0.5=32

32*1.5=48

48*2.5=120

120*3.5=420

420*4.5=1890

quantitative aptitude
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