1.
What should come in place of question mark (?) in the following number series ?87, 89, 95, 107, ?, 157
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By: anil on 05 May 2019 01.24 am
Here, the difference between consecutive terms is:
89-87 =2
95-89 =6
107-95 = 12 Now, difference of the difference is :
6-2 = 4
12-6= 6
Difference series is an arithmetic progression with common difference 2. Hence the next term will be 8 and difference between terms will be 20.
Next term = 107+20 = 127 Hence, the correct option is A.
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89-87 =2
95-89 =6
107-95 = 12 Now, difference of the difference is :
6-2 = 4
12-6= 6
Difference series is an arithmetic progression with common difference 2. Hence the next term will be 8 and difference between terms will be 20.
Next term = 107+20 = 127 Hence, the correct option is A.