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Question
Find the pattern and complete it:
Find the pattern and complete it:
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Solution
The correct option is D -115 and 237
The first term is -5, the second term is 17, the third term is -27 and the fourth term is 61 .
In this pattern, positive and negative numbers are involved. It means, we have to do multiplication and then addition or subtraction.
First term is -5. Multiply (-5) with (-2) and then add it to 7.
(-5) × (-2) + 7 = 10 + 7 = 17 = second term
Let’s multiply 17 with (-2) and add it 7.
17 × (-2) + 7 = -34 + 7 = -27 = third term.
We can observe that this pattern follows for all the terms. To get the next term, we need to multiply with (-2) and subtract it to 7.
The term after 61 will be
(61) × (-2) + 7 = -122 + 7 = -115.
(-115) × (-2) + 7 = 230 + 7 = 237
So, the two last terms are -115 and 237.
The first term is -5, the second term is 17, the third term is -27 and the fourth term is 61 .
In this pattern, positive and negative numbers are involved. It means, we have to do multiplication and then addition or subtraction.
First term is -5. Multiply (-5) with (-2) and then add it to 7.
(-5) × (-2) + 7 = 10 + 7 = 17 = second term
Let’s multiply 17 with (-2) and add it 7.
17 × (-2) + 7 = -34 + 7 = -27 = third term.
We can observe that this pattern follows for all the terms. To get the next term, we need to multiply with (-2) and subtract it to 7.
The term after 61 will be
(61) × (-2) + 7 = -122 + 7 = -115.
(-115) × (-2) + 7 = 230 + 7 = 237
So, the two last terms are -115 and 237.
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