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Study the given pattern carefully and select the number that can replace the question mark (?) in it.First row-56,60, 16​Second row-64,68,18​Third row
Question

Study the given pattern carefully and select the number that can replace the question mark (?) in it.
First row-56,60, 16
Second row-64,68,18
Third row-72, ?,  20
(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.)

A.

75

B.

74

C.

76

D.

78

Correct option is C

Given:
First row-56,60, 16
Second row-64,68,18
Third row-72, ?,  20
Logic: difference of 1st and 2nd is 4 and 4 is multiply by one less than 3rd number.
First row-56,60,16
56 , 4 × 15= 60  ,   15 +1 = 16 
​Second row-64,68,18
8 × 8= 64, 4 × 17 = 68, 17+1 = 18 
Third row-72, ?,  20
8× 9 = 72, 4 × x =   , x+ 1 = 20 
x+ 1 = 20 
x =  20 -1 
x = 19 
Thus, correct option is (c).

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