In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number. In three of the four pairs, the same pattern is applied and hence they form a group. Select the number-pair that DOES NOT belong to this group.

(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits . E.G 13 – Operations on 13 such as adding/ subtracting/multiplying to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

Option
a) 335 – 119
b) 358 – 152
c) 317 – 101 
d) 308 -92

Solution

308 – 92 = 216
335 – 119 – 216
317 – 101 = 216
358 – 152 = 206
It is different from the group
358 – 152 = 206

Correct Answer: b) 358 – 152