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Question : Directions: Find the missing number from the given responses.

7 3 10
3 4 7
2 7 ?
42 84 140

Option 1: 2

Option 2: 17

Option 3: 34

Option 4: 9


Team Careers360 14th Jan, 2024
Answer (1)
Team Careers360 15th Jan, 2024

Correct Answer: 2


Solution : Given:

7 3 10
3 4 7
2 7 ?
42 84 140

The pattern can be observed running vertically down in the columns.
Column 1: 7 × 3 × 2 = 42
Column 2: 3 × 4 × 7 = 84
Column 3: 10 × 7 × (?) = 140
⇒ 70 × (?) = 140
⇒ (?) = 140 ÷ 70
⇒ (?) = 2

So, 2 is the missing term in the series. Hence, the first option is correct.

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