Question discussion

What should come in place of question mark (?) in the following number series ?

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What should come in place of question mark (?) in the following number series ?
51975, 9450, 2100, 600, 240, 160, ?
  • A80
  • B120
  • C320
  • D240
Answer not set
0
CCommunity
Solution
51975 9450 2100 600 240 160 ?

Ratio of 51975 and 9450 = 5.5

Ratio of 9450 and 2100 = 4.5

Ratio of 2100 and 600 = 3.5

Ratio of 600 and 240 = 2.5

Ratio of 240 and 160 = 1.5

Ratio of 160 and unknown number = .5

Hence, the number is 160/0.5 = 320.
0
CCommunity
Solution
51975 9450 2100 600 240 160 ?

Ratio of 51975 and 9450 = 5.5

Ratio of 9450 and 2100 = 4.5

Ratio of 2100 and 600 = 3.5

Ratio of 600 and 240 = 2.5

Ratio of 240 and 160 = 1.5

Ratio of 160 and unknown number = .5

Hence, the number is 160/0.5 = 320.