In the sequence 20, 10, 10, 15, 30, 75, X, find the value of X.
Information Given:
Series: 20, 10, 10, 15, 30, 75, X
Logic:
Pattern: ×(1/2), ×1, ×(3/2), ×2, ×(5/2), ×3
Step-by-step:
20 × 1/2 = 10
10 × 1 = 10
10 × 3/2 = 15
15 × 2 = 30
30 × 5/2 = 75
75 × 3 = 225
Short Trick:
Multiply by pattern: 1/2, 1, 3/2, 2, 5/2, 3
Final Answer:
225
Final Correct Option:
D
English
150 Questions
150 Marks
150 Mins English English150 Questions150 Marks150 Mins English English150 Questions150 Marks150 Mins EnglishWhat should come in place of the question mark (?) in the given series?
23, 24, 32, 59, 123, ?
What should come in place of the question mark (?) in the given series?
88, 91, 97, 106, 118, ?
What should come in place of ? in the given series?
451, 338, 225, 112, -1, ?
What should come in place of the question mark (?) in the given series?
48, 51, ?, 54, 42, 57, 39
In the sequence 20, 10, 10, 15, 30, 75, X, find the value of X.
In the following question, select the missing number from the given series :
13, 35, 73, 215, 433, ?
A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
-36, -68, -132, -260, ?, -1028, -2052, -4100
Which of the following numbers will replace the question mark (?) in the given series?
111, 114, 119, ?, 135
What should come in place of the question mark (?) in the given series?
26 26 38 38 50 50 ?
Suggested Test Series
Suggested Test Series
What should come in place of the question mark (?) in the given series?
23, 24, 32, 59, 123, ?
What should come in place of the question mark (?) in the given series?
88, 91, 97, 106, 118, ?
What should come in place of ? in the given series?
451, 338, 225, 112, -1, ?
What should come in place of the question mark (?) in the given series?
48, 51, ?, 54, 42, 57, 39
In the sequence 20, 10, 10, 15, 30, 75, X, find the value of X.
In the following question, select the missing number from the given series :
13, 35, 73, 215, 433, ?
A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
-36, -68, -132, -260, ?, -1028, -2052, -4100
Which of the following numbers will replace the question mark (?) in the given series?
111, 114, 119, ?, 135
What should come in place of the question mark (?) in the given series?
26 26 38 38 50 50 ?
