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Question

The mean of four numbers a, b, c, d is 100. If c = 70, then the mean of the remaining numbers is

a.

30

b.

85/2

c.

170/3

d.

110

Answer: (d).110

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Q. The mean of four numbers a, b, c, d is 100. If c = 70, then the mean of the remaining numbers is

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