Find the missing term(s) in the following series.
Sections
13, 30, ?, 148, 273
Answers
Answered by
0
Answer:
75
Step-by-step explanation:
Let the missing number be x.
13 30 x 148 .......
17 x-30 148-x --- 1st level difference
Let y be the common addition factor for 2nd level difference.
17 + y = x - 30 .... (1)
x-30 + y = 148 - x .... (2)
Solving (1) and (2) we get, x-y = 47; 2x + y = 178
3x = 225
Therefore, x = 75
So the missing number is 75.
Answered by
1
The missing number(?) is "75".
Step-by-step explanation:
The given sequence are:
13, 30, ?, 148, 299
The pattern follow:
+ 17 , + (17 × 2) + 1, + (35 × 2) + 3,......
To find, missing number(?) = ?
30 = 13 + 17 = 30
? = 30 + 2 × 17 + 1 = 30 + 35 = 75
148 = 75 + 2 × 35 + 3 =75 + 73 = 148
299 = 148 + 2 × 73 + 5 = 148 + 151 = 299
Hence, the missing number(?) is "75".
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