Observe the following table and determine the missing number in the last cell:A B C D Result 5 2 3 10 40 4 3 5 8 40 6 4 2 12 ?
48
Look for a single rule that links the four values A, B, C, D to the Result in every row.
Row 1: \(5+2+3+10 = 20\) and \(20 \times 2 = 40\).
Row 2: \(4+3+5+8 = 20\) and \(20 \times 2 = 40\).
Both rows confirm the rule: add the four numbers, then double the sum.
Row 3: \(6+4+2+12 = 24\).
Doubling gives \(24 \times 2 = 48\).
The rule 'sum of the four entries times two' fits every row consistently.
The missing number is 48.
Similar Questions
Find the missing number: 6 : 42 :: 9 : ?
Find the missing number.
24, 35, 46, 57, ?, 79
Find the missing number: 5 : 180 :: 6 : ?
Important Questions from Missing Number
Study the given pattern carefully and select the number from among the given options that can replace the question mark (?) in it.
13 16 52 15 24 90 23 36 ? Select the set in which the numbers are related in the same way as are the numbers of the given set.
(NOTE: Operations should be performed on the whole numbers, without breaking down the number 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.)
(25, 150, 3)
(18, 180, 5)
Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is related to the third number.
7 ∶ 35 ∶∶ 21 ∶ 399 ∶∶ 4 ∶ ?
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
First row - 12, 7, 32
Second row - 17, 13, 33
Third row - 14, 8, ?
(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)
Select the number that can replace the question mark (?) in the following pattern.
5
6
7
8
9
115
206
?
502
719
