Question
In a class, Arhin’s rank was 30 from the top and 48
from the bottom. If his rank became 57 from the top, then what will be his rank from the bottom?Solution
Total persons in class = Arhin’s rank from the top + Arhin’s rank from the bottom - 1 = 30 + 48 - 1 = 78 - 1 = 77  If his rank became 57 from the top:  Arhin’s rank from the bottom = Total persons in class - Arhin’s rank from the top + 1 = 77 - 57 + 1 = 20 + 1 = 21  Hence, the correct answer is (C).
Find the wrong number in the series given below.
3, 10, 89, 99, 301, 908
Find the wrong number in the given series.
9, 18, 54, 270, 1899, 20790
In the following question, select the wrong number from the given alternatives.
48, 50, 52, 57, 59, 68, 75
Select the number from among the given options that is wrong in the following series.
22, 30, 46, 78, 146, 270
In the following question, select the wrong number from the given alternatives.
56, 62, 74, 94, 116, 146
Select the wrong term in the series.
7, 14, 42, 210, 1470, 17640
Find the wrong number in the series given below.
7, 22, 68, 217, 625, 1880
Find the wrong number in the given series.
5, 3, 6, 17.25, 64.75
Find the wrong number.
17, 25, 37, 47, 65, 81
Find the wrong number in the given series.
45, 50, 60, 80, 120, 180, 360
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