Question

Choose the set of the numbers from the four alternatives which is similar to the given set
Given set : (9, 15, 21)

• A. $(10,14,17)$
• B. $(10,14,16)$
• C. $(5,10,25)$
• D. $(4,8,12)$

Answer 1

Answer: (D)

$(4,8,12)$

In the given set of numbers , the numbers are written in increasing order with constant difference of 6.

Only option D satisfies this relation.

in option D numbers are written in increasing order with constant difference.

In all other option the numbers are written in increasing order but with variable difference.