Olympiad Test: Patterns - 1 - Class 2 MCQ

The sequence progresses by alternating between the letters A and B while increasing the number of each letter by one every two steps. The progression can be summarised as follows:

• Starting with single letters: A, B
• Followed by double letters: AA, BB
• Then triple letters: AAA, BBB
• The next logical step is four Bs, which corresponds to option C: BBBB

Given ABCK = 1234, we map each letter to its corresponding digit:

• A corresponds to 1 (thousands place)
• B corresponds to 2 (hundreds place)
• C corresponds to 3 (tens place)
• K corresponds to 4 (ones place)

To find BACK, substitute the mapped values:

• B = 2
• A = 1
• C = 3
• K = 4

Thus, BACK = 2134.

As arrow is moving in a clockwise direction.

The sequence progresses by adding an additional 'A' each time while keeping the number of 'B's constant at two, except in the last step where it increases to three 'B's.

• The correct next term should be AAAABBB.
• Since this option isn't provided, none of the given choices are correct.

1 square, 2 squares, 3 squares, 4 squares.

Each term increases by 10, so the next term is 60. Here is a step-by-step explanation:

• Identify the pattern in the sequence.
• Observe that each number increases by 10 from the previous one.
• Apply this pattern to find the missing number after 50, which is 60.
• Confirm that option A matches this result.

200 - 190 = 10
190 - 180 = 10
180 - 170 = 10
170 - 160 = 10
160 - 150 = 10

The pattern consists of consecutive letters where each pair starts with the second letter of the previous pair. Following this logic:

• After EF, the next pair is FG.
• Each new pair begins with the second letter of the previous pair.