   # Missing Number Problems for SSC CHSL and SSC CGL Tier 1 2018 Exams

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### Directions: Select the missing number from the given alternatives:

Important for :
1 » Explain it
A
4 × 1 = 4,

4 × 2 = 8,

8 × 3 = 24,

24 × 4 = 96,

96 × 5 = 480,

480 × 6 = 2880,

2880 × 7 = 20160

Hence, option A is correct.

2 » Explain it
B
Sum = 75° + 105° = 180° Now, 141° + ? = 180° ? = 180° – 141° = 39°

Hence, option B is correct.

3 » Explain it
D
By applying the 'Hit and trial' approach we get to understand that the required value of '?' is equal to the sum of the respective numeric values of positions of the given letters in English alphabet.

W + O + R + D + S + S

= 23 + 15 + 18 + 4 + 19 + 19 = 98

Option D is hence the correct answer.

4 » Explain it
D
12 + 15 = 27,
15 + 11 = 26,
11 + 18 = 29,
18 + 12 = 30

Hence, option D is correct.

5
 5 4 3 ? 23 6 2 5 4 38 12 3 4 1 ?

» Explain it
A
The pattern of the numbers is:

5 × 3 + 4 × 2 = 23 6 × 5 + 2 × 4 = 38

12 × 4 + 3 × 1 = 51

Hence, option (A) is correct.