
The sum of the successor and predecessor of is
A. 101
B. 199
C. 200
D. 111
Answer
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Hint:We first explain the concept of successor and predecessor of any number. Then we explain the process to get a successor and predecessor of that number. We take the sum of those numbers and find the simplified form of the sum in its general form.
Complete step by step answer:
The successor and predecessor of a number can be found by adding and subtracting 1 respectively from that number. We add and subtract 1 from the number 100 to get the successor and predecessor of 100. The successor of 100 is and the predecessor of 100 is . Now we find the sum of the successor and predecessor and get .
Therefore, the sum of the successor and predecessor of 100 is 200.
Note:We can also find the simplified form of the sum of the successor and predecessor of any number in the form of variable . We find the successor and predecessor of .
The successor and predecessor of will be and respectively.
The sum will be .
Therefore, in general the sum of the successor and predecessor of any number is twice of that number itself. For 100, we got .
Complete step by step answer:
The successor and predecessor of a number can be found by adding and subtracting 1 respectively from that number. We add and subtract 1 from the number 100 to get the successor and predecessor of 100. The successor of 100 is
Therefore, the sum of the successor and predecessor of 100 is 200.
Note:We can also find the simplified form of the sum of the successor and predecessor of any number in the form of variable
The successor and predecessor of
The sum will be
Therefore, in general the sum of the successor and predecessor of any number is twice of that number itself. For 100, we got
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