Find the missing term (denoted by question mark '?')
6
7
4
15
7
15
25
28
8
13
?
20
3
5
7
9

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Solution

The correct option is C 20
Here we consider sum of first three numbers of the columns and divide the sum by the last number of a column.

For example, in the first column 6+7+8 = 21
Here the last number of this column is 3
Hence, $\frac{21}{3} = 7$
Hence, in every column if we apply the same condition it is all equal to 7

Let us consider second column
Here we have 7+15+13 =35.
In this column last digit is 5.
Hence, we have $\frac{35}{5} = 7$

Let us apply the same for third column
$\frac{4 + 25 + ?}{7} = 7 \Rightarrow ? = 49 - 29 = 20$

Hence, option D is the correct answer.

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Similar questions

Verify the following :

(i) $\frac{3}{7} \times (\frac{5}{6} + \frac{12}{13}) = (\frac{3}{7} \times \frac{5}{6}) + (\frac{3}{7} \times \frac{12}{13})$
(ii) $\frac{- 15}{4} \times (\frac{3}{7} + \frac{- 12}{5}) = (\frac{- 15}{4} \times \frac{3}{7}) + (\frac{- 15}{4} \times \frac{- 12}{5})$
(iii) $(\frac{- 8}{3} + \frac{- 13}{12}) \times \frac{5}{6} = (\frac{- 8}{3} \times \frac{5}{6}) + (\frac{- 13}{12} \times \frac{5}{6})$
(iv) $\frac{- 16}{7} \times (\frac{- 8}{9} + \frac{- 7}{6}) = (\frac{- 16}{7} \times \frac{- 8}{9}) + (\frac{- 16}{7} \times \frac{- 7}{6})$

Q. Find the missing term :

2	10	11	15
9	8	5	20
7	9	?	10
6	9	11	15

Re-arrange suitably and find the sum in each of the following :

(i) $\frac{11}{12} + \frac{- 17}{3} + \frac{11}{2} + \frac{- 25}{2}$

(ii) $\frac{- 6}{7} + \frac{- 5}{6} + \frac{- 4}{9} + \frac{- 15}{7}$

(iii) $\frac{3}{5} + \frac{7}{3} + \frac{9}{5} + \frac{- 13}{15} + \frac{- 7}{3}$

(iv) $\frac{4}{13} + \frac{- 5}{8} + \frac{- 8}{13} + \frac{9}{13}$

(v) $\frac{2}{3} + \frac{- 4}{5} + \frac{1}{3} + \frac{2}{5}$

(vi) $\frac{1}{8} + \frac{5}{12} + \frac{2}{7} + \frac{7}{12} + \frac{9}{7} + \frac{- 5}{16}$

\frac{5}{6} \times \frac{4}{7} \times \frac{14}{15} \times \frac{13}{25} \times \frac{15}{4} =

Q. Find the missing number in the following question.

$3$	$6$	$9$
$5$	$8$	$20$
$4$	$7$	$?$

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Find the missing term (denoted by question mark '?') 6 7 4 15 7 15 25 28 8 13 ? 20 3 5 7 9

Find the missing term (denoted by question mark '?')
6
7
4
15
7
15
25
28
8
13
?
20
3
5
7
9