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Select the option in which the numbers are related in the same way as are the numbers in the given sets.
Select the option that is related to third number-cluster in the same way first number cluster is related to second number-cluster.
Select the combination of letter when placed sequentially in the blanks of the given series will complete the series.
If 74 × 35 = 3, 35 × 13 = 4, 54 × 42 = 3, then 78 × 44 =?
If 38 @ 9 = 66 and 63 @ 43 = 122, then 29 @ 57 = '?'.