Question 3

# Which number will replace the question mark (?) in the following series?115, ?, 134, 145, 157, 170

Solution

As per the given terms in the question,

115, ?, 134, 145, 157, 170

We can conclude that,

$$115 \underrightarrow{(+9)} 124 \underrightarrow{(+10)} 134 \underrightarrow{(+11)} 145 \underrightarrow{(+12)} 157 \underrightarrow{(+13)} 170 \underrightarrow{(+14)} 184$$

Hence the question mark will be replaced by 124.