Question

808, 408, 208,108, 68 find out wrong number.​

Answer 1

Differences are -400, -200, -100 So I think the differences are halving each time so next difference should be -50 to give 58 not 68.

Answer 2

68 is the wrong number in the sequence 808, 408, 208,108, 68

What is Number system?

A number system is defined as a system of writing to express numbers.

Sequence is an enumerated collection of objects in which repetitions are allowed and order matters.

The given sequence is 808, 408, 208,108, 68

Eight hundred eight, Four hundred and eight, two hundred and eight, one hundred eight and sixty eight.

808, 408, 208,108, 68

Let us find the difference between the consecutive numbers

400, 200, 100, 40

As we observe the first three terms having the common ratio where as 40 and 100 has different ratio.

Hence, 68 is the wrong number in the sequence 808, 408, 208,108, 68

To learn more on Number system click:

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