NIACL Model Paper 6 with solutions for free online practice

Question : 44 of 100

Marks: +1, -0

129 128 124 115 ? 74

Solution:

(1) The pattern is :
129-

1^2 = 129- 1 = 128

1 28 - 2^2 = 1 28-4 = 1 24

1 24 - 3^2 = 1 24 - 9 = 1 15

115-4^2 = 115-16=99

99 - 5^2 = 99 -25 = 74

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