In seven given number the average of first four number is 4 and that of the last four numbers is also 4, if the average of these seven numbers is 3, the fourth number is

7

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4

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3

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11

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Solution

The correct option is D $11$
Required number $= 4 \times 4 + 4 \times 4 - 7 \times 3 = 11$

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In seven given number the average of first four number is 4 and that of the last four numbers is also 4, if the average of these seven numbers is 3, the fourth number is

The correct option is D 11Required number =4×4+4×4−7×3=11

The correct option is D $11$
Required number $= 4 \times 4 + 4 \times 4 - 7 \times 3 = 11$