Question 45
One term in the given number series is wrong. Find out the wrong term.
15, 17, 22, 32, 49, 76
Solution
In the given series double difference is applicable. So in the second difference 3, 5, and 7 are correct. But 10 is not the correct one. Because that is not maintaining the difference of 2. So instead of 10, it should be 9. Then 17+9 = 26 and 26+49 = 75.
Here 76 is the wrong number in the series.
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