Assume there are four families in a country. The average per capita income of these families is 6000. If the income of these families is 5000, 6000 and 4000 respectively, what is the income of the fourth family? 1 a. ₹7500 b. ₹9000 c. ₹5000 d. ₹6000

b is the answer .

Explanation:

you just have to find the mean .. (average) so add all the numbers including one of the answer choices then divide by 4. and continue doing that with every answer choice till you get the answer.

hygrometers and hair thermometers (often found as part of hygrometers/psychrometers) can be used to measure humidity. barometers are used to measure atmospheric pressure, while anemometers are used to measure wind speed. so the 2nd and 4th choices should be the correct answers.