In a survey in Ahmedabad, the mean number of members per household was 5. The survey covered 8 households. If 7 households had 4, 6, 5, 3, 7, 5 and 6 members, how many members did the eighth household have?

Question

Accepted Answer

4. Total members = 5 x 8 = 40. Sum of seven = 4+6+5+3+7+5+6 = 36. Eighth = 40 - 36 = 4 members.

In a survey in Ahmedabad, the mean number of members per household was 5.
The survey covered 8 households.
If 7 households had 4, 6, 5, 3, 7, 5 and 6 members,
how many members did the eighth household have?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 7 Arithmetic Mean practice

In a survey in Ahmedabad, the mean number of members per household was 5.The survey covered 8 households.If 7 households had 4, 6, 5, 3, 7, 5 and 6 members,how many members did the eighth household have?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 7 Arithmetic Mean practice

In a survey in Ahmedabad, the mean number of members per household was 5.
The survey covered 8 households.
If 7 households had 4, 6, 5, 3, 7, 5 and 6 members,
how many members did the eighth household have?