A question is given followed by information in three statements. You have to find out the data in which statement (s) is sufficient to answer the question and mark your answer accordingly. What is the average weight of Manoj’s family having 10 members I) the average weight of all the 4 children is 35. II) Average weight of the elders is 30. III) There are 6 elders in the family.

A question is given followed by information in three statements. You have to find out the data in which statement (s) is sufficient to answer the question and mark your answer accordingly. What is the average weight of Manoj’s family having 10 members I) the average weight of all the 4 children is 35. II) Average weight of the elders is 30. III) There are 6 elders in the family. Correct Answer Only I & II is sufficient

Total sum of members of Manoj’s family = 10x

By statement I,

Sum of 4 children = 35 × 4 = 140

Elders = 10 - 4 = 6

By statement II, we get,

Sum of weight of elders = 6 × 30 = 180

Average of all 10 members = (180 + 140)/10 = 32

∴ Statements I & II are sufficient to answer the question.

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