In each of the following questions one term in the number series is wrong. Find out the wrong term. 2, 3, 4, 4, 6, 8, 9, 12, 16.
( A ) 3
( B ) 6
( C ) 9
( D ) 12
Answers
Answer:
c) 9
Step-by-step explanation:
Given series is 2, 3, 4, 4, 6, 8, 9, 12, 16. We need to find out the wrong term.
Pick the first three numbers from the given series i.e. 2, 3 and 4. Now, multiply them with two and then again multiply the resultant with two.
→ 2 × 2 = 4 × 2 = 8
→ 3 × 2 = 6 × 2 = 12
→ 4 × 2 = 8 × 2 = 16
From above we have,
1st series: 2, 4, 8
2nd serie: 3, 6, 12
3rd series: 4, 8, 16
If we look at the question again we'll notice that series is like first three numbers in one series then next three numbers arranged from first to third series & so on.
As per question,
1st series: 2, 4, 9
2nd series: 3, 6, 12
3rd series: 4, 8, 16
On comparing the series we get that the term 9 is wrong because (4 × 2) is 8 not 9.
Therefore, the correct option is option c) 9.