NIACL Model Paper 2 with solutions for free online practice

Question : 29 of 100

Marks: +1, -0

15,12,17,10,?, 8,25, 6

Solution:

15-3=12

12 + 5 = 17

17-7=10

10+11=21

21-13=8

8+17 =25

25-19 = 6

Note 3,5,7,11,13,17 and 19 are consecutive prime numbers

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