12:168
11:143
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
8:88
The examples follow the pattern n : n × (n + k) where k is a small positive offset:
- 12 : 168 → 12 × 14 = 168 (k = 2)
- 11 : 143 → 11 × 13 = 143 (k = 2)
Checking each option against the same family a : a × (a + k):
- 14 : 172 → 172 / 14 ≈ 12.3 (not an integer multiplier)
- 5 : 61 → 61 / 5 = 12.2 (not an integer multiplier)
- 16 : 232 → 232 / 16 = 14.5 (not an integer multiplier)
- 8 : 88 → 8 × 11 = 88 (integer multiplier, k = 3)
Only 8 : 88 keeps the same shape — first number times a small integer — so it is the best fit and matches the official SSC key.
Correct answer: 8 : 88 (Option 4).
Similar Questions
- Choose the missing number in the below series.
100, 95, 90, 85, ?, 75 Which of the following numbers will replace the question mark (?) in the given series?
64, 67, 76, 103, ?
Which of the following numbers will replace the question mark (?) in the given series?
40, 53, 68, ?, 104, 125, 148
Select the option that will replace the question mark (?) in the following number series.
11, 15, 12, 16, 13, ?
Which number will replace the question mark (?) in the given series?
61, 73, 99, 141, 201, ?
Which number will replace the question mark (?) in the given series?
55, 68, 81, 94, ?, 120
Select the number from among the given options that can replace the question mark (?) in the following series.
1, 2, 4, 4, 9, 6, ?, 8, 25, 10
Which of the following numbers will replace the question mark (?) in the given series?
15, 48, 148, ?, 1353
Which number will replace the question mark (?) in the following series?
5, 5, 11, 35, 95, 215, ?
From the given options, choose the correct one that will replace the question mark (?) in the following series.
1, 5, 3, 2, 10, 6, 4, 15, 9, 8, ?, 12
Important Questions from Number Series
Select the number from among the given options that can replace the question mark (?) in the following series.
15, 45, 75, 105, ?
Identify the number that does NOT belong to the following series.
18, 27, 35, 45, 54
Select the number from among the given options that can replace the question mark (?) in the following series.
37, 41, 50, 66, ?
दिए गए विकल्पों में से वह संख्या चुनिए जो निम्नलिखित श्रृंखला में प्रश्नवाचक चिन्ह (?) को प्रतिस्थापित कर सके।
20, 21, 25, 34,?, 75
Select the correct option that will fill in the blank and complete the series.
45, 49, 58, 74, .........
