Select the set in which the numbers are related in the same way as are the numbers of the following sets.
(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.)
(7, 13, 10)
(15, 21, 18)
Answer & explanation
Correct answer: option 3
(7, 13, 10)
(15, 21, 18)
The logic followed here is :
(Ist number + second number ) ÷ 2 = IIIrd number
As
(7 + 13 ) ÷ 2 =10
(15 + 21 ) ÷ 2 =18
Same as in option 3 (11, 15, 13)
(11 + 15 ) ÷ 2 = 13