18 is related to 37 following a certain logic. Following the same logic, 36 is related to 73. To which of the given options is 54 related, following the same logic? (NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
109
Each number is related to the next by doubling it and adding 1: 18 × 2 + 1 = 37; 36 × 2 + 1 = 73.
Applying the same rule to 54: 54 × 2 + 1 = 109.
Hence, the correct answer is 109.
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Important Questions from Number Based
In the following question, four number pairs are given. The number on left side of (-) is related to the number of the right side of (-) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.
Select the set in which the numbers are related in the same way as are the number of the following set.
(3, 7, 58)
Find the odd number/letters from the given alternatives.
Find the odd number/letters from the given alternatives.
Identify the number which is different from the other.
