Which of the following can be used to avoid duplicate

Select the option that is related to third letter- cluster in the same way as the second – letter cluster is related to the first letter- cluster.

Select the number -pair from the given options that shares a similar relationship as the given number-pair.

192-108

If 25 @ 20 = 5 and 28 @ 23 = 14, then 26 @ 21 = ?'. What will come in place of question mark?

Select the option that is related to the third letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster.

If 7Ω3 = 42, 8Ω4 = 64, and 5Ω6 = 60, then find the value of 9Ω2 = ?

Identify the number, which when added to itself 10 times gives 242.

Find the odd set of numbers from the given alternatives?