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Q: The twice of sum of the ages of a father and his son is 8 times the age of the son. If the average age of the father and the son is 30 years, what is father's age ? 1429 0

Answer : 2. "45 yrs"
Explanation :
Answer: B) 45 yrs Explanation: Let father's age be x year and son's age be y year. According to question, 2(x+y) = 8y _(I) and (x+y)/2 = 30 => x+y = 60 years____(II) From equation (I) and (II) 8 y = 120 y = 15 years, Hence x = 45 years.

Q:
The average of 20 numbers is 32. If two numbers are 29 and 31, then what is the average of the remaining numbers (correct up to two decimals)?
1423 0

Answer : 4. "32.22"

Q:
What is the average of the following numbers?
38, 92, 45, 25, 60
1413 0

Answer : 5. "None of these"

Q:
In a certain year, the average monthly income of a person was Rs.3,400. For the first eight months of the years, his average monthly income was Rs. 3,160 and for the last five months, it was Rs.4,120. His income in the eighth month of the year was:
1411 0

Answer : 2. "Rs . 5,080 "

Q:
The mean of 14 observations is 11. One more observation is included and the new mean becomes 12. The observation is
1400 0

Answer : 3. "26 "

Q:
Ram has 5 daughters. The average age of these 5 sisters is 28 years. The youngest one is 16 years old. What was the average age of the 4 daughters before the youngest one was born?
1398 0

Answer : 2. "15 years"

Q:
The average weight of Sudesh, Jyothi and Ritu is 89 kg. If the average weight of Sudesh and Jyothi be 98 kg and that of Jyothi and Ritu be 83 kg, then the weight of Jyothi is
1397 0

Answer : 4. "95"

Q:
The average of three consecutive odd numbers is 12 more than one third of the first of these numbers. What is the last of the three numbers?
1381 0

Q: The twice of sum of the ages of a father and his son is 8 times the age of the son. If the average age of the father and the son is 30 years, what is father's age ? 1429 05b5cc6c9e4d2b4197774df83

Answer : 2. "45 yrs" Explanation :Answer: B) 45 yrs Explanation: Let father's age be x year and son's age be y year. According to question, 2(x+y) = 8y _______(I) and (x+y)/2 = 30 => x+y = 60 years__________(II) From equation (I) and (II) 8 y = 120 y = 15 years, Hence x = 45 years.

Q: The average of 20 numbers is 32. If two numbers are 29 and 31, then what is the average of the remaining numbers (correct up to two decimals)? 1423 064abdcbb299b7896000b4560

Answer : 4. "32.22"

Q: What is the average of the following numbers?38, 92, 45, 25, 60 1413 05da059f500e22578c9e9a658

Answer : 5. "None of these"

Q: In a certain year, the average monthly income of a person was Rs.3,400. For the first eight months of the years, his average monthly income was Rs. 3,160 and for the last five months, it was Rs.4,120. His income in the eighth month of the year was: 1411 05dcba01d45ad6b59c82d7884

Answer : 2. "Rs . 5,080 "

Q: The mean of 14 observations is 11. One more observation is included and the new mean becomes 12. The observation is 1400 05ee05f683f1add232d8330fa

Answer : 3. "26 "

Q: Ram has 5 daughters. The average age of these 5 sisters is 28 years. The youngest one is 16 years old. What was the average age of the 4 daughters before the youngest one was born? 1398 05df9b6a87c41ef1d193367c5

Answer : 2. "15 years"

Q: The average weight of Sudesh, Jyothi and Ritu is 89 kg. If the average weight of Sudesh and Jyothi be 98 kg and that of Jyothi and Ritu be 83 kg, then the weight of Jyothi is 1397 05f3f922654900c5349e3813e

Answer : 4. "95"

Q: The average of three consecutive odd numbers is 12 more than one third of the first of these numbers. What is the last of the three numbers? 1381 05f2a625dcef453383f1e3ce5

Answer : 1. "19 "

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Q: The twice of sum of the ages of a father and his son is 8 times the age of the son. If the average age of the father and the son is 30 years, what is father's age ? 1429 0

Answer : 2. "45 yrs"
Explanation :
Answer: B) 45 yrs Explanation: Let father's age be x year and son's age be y year. According to question, 2(x+y) = 8y _(I) and (x+y)/2 = 30 => x+y = 60 years____(II) From equation (I) and (II) 8 y = 120 y = 15 years, Hence x = 45 years.

Q:
The average of 20 numbers is 32. If two numbers are 29 and 31, then what is the average of the remaining numbers (correct up to two decimals)?
1423 0

Q:
What is the average of the following numbers?
38, 92, 45, 25, 60
1413 0

Q:
In a certain year, the average monthly income of a person was Rs.3,400. For the first eight months of the years, his average monthly income was Rs. 3,160 and for the last five months, it was Rs.4,120. His income in the eighth month of the year was:
1411 0

Q:
The mean of 14 observations is 11. One more observation is included and the new mean becomes 12. The observation is
1400 0

Q:
Ram has 5 daughters. The average age of these 5 sisters is 28 years. The youngest one is 16 years old. What was the average age of the 4 daughters before the youngest one was born?
1398 0

Q:
The average weight of Sudesh, Jyothi and Ritu is 89 kg. If the average weight of Sudesh and Jyothi be 98 kg and that of Jyothi and Ritu be 83 kg, then the weight of Jyothi is
1397 0

Q:
The average of three consecutive odd numbers is 12 more than one third of the first of these numbers. What is the last of the three numbers?
1381 0