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In each of the following questions, one number is wrong in the series. Find out the wrong number.
Q. 3, 5, 12, 39, 154
Q. 3, 5, 12, 39, 154
- a)5
- b)3
- c)39
- d)12
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
In each of the following questions, one number is wrong in the series....
The given series follows the pattern 3 × 1 + 2 = 5, 5 × 2 + 2 = 12,
12 × 3 + 2 = 38
so, 38 is wrong number.
12 × 3 + 2 = 38
so, 38 is wrong number.
Most Upvoted Answer
In each of the following questions, one number is wrong in the series....
To find out the wrong number in the series 3, 5, 12, 39, 154, we need to analyze the pattern or rule followed by the given numbers. Let's break down the series and identify the pattern:
1. The first number is 3.
2. The second number is obtained by multiplying the first number by 2 and adding 1: 3 * 2 + 1 = 7.
3. The third number is obtained by multiplying the second number by 2 and adding 2: 7 * 2 + 2 = 16.
4. The fourth number is obtained by multiplying the third number by 2 and adding 3: 16 * 2 + 3 = 35.
5. The fifth number is obtained by multiplying the fourth number by 2 and adding 4: 35 * 2 + 4 = 74.
From the pattern observed, it seems that each number in the series is obtained by multiplying the previous number by 2 and adding a specific increment. However, when we calculate the next number using this rule, we get 74 * 2 + 5 = 153, which is different from the given fifth number, 154.
Therefore, the wrong number in the series is 154, and the correct answer is option C, as mentioned in the question.
1. The first number is 3.
2. The second number is obtained by multiplying the first number by 2 and adding 1: 3 * 2 + 1 = 7.
3. The third number is obtained by multiplying the second number by 2 and adding 2: 7 * 2 + 2 = 16.
4. The fourth number is obtained by multiplying the third number by 2 and adding 3: 16 * 2 + 3 = 35.
5. The fifth number is obtained by multiplying the fourth number by 2 and adding 4: 35 * 2 + 4 = 74.
From the pattern observed, it seems that each number in the series is obtained by multiplying the previous number by 2 and adding a specific increment. However, when we calculate the next number using this rule, we get 74 * 2 + 5 = 153, which is different from the given fifth number, 154.
Therefore, the wrong number in the series is 154, and the correct answer is option C, as mentioned in the question.
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