16 : 40 :: 20 : ?

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16 : 40 : : 20 : ?

A80

B50

C100

D120

Answer:

16 × 5 = 80 → 80 ÷ 2 = 40 20 × 5 = 100 → 100 ÷ 2 = 50

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Select the related letters from the given alternatives.

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Select the number- pair in which the two numbers are related in the same way as the two numbers of the following number- pair.

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