Out of four numbers a, b, c, d, the average of first three is 16 and that of the last three is 17. If d = 19, a is:

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None of these

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Solution

The correct option is C
16

a + b + c = 48

b + c + d = 51

Solving we get a = 16.

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Out of four numbers a, b, c, d, the average of first three is 16 and that of the last three is 17. If d = 19, a is:

The correct option is C 16 a + b + c = 48 b + c + d = 51 Solving we get a = 16.

The correct option is C
16

a + b + c = 48

b + c + d = 51

Solving we get a = 16.