Hand picked material and question banks

Latest Popular RatedShowing Page 8 of 30Total Questions 233 Join Examsbook

Q:
What will be the average of the following set of scores?
59, 84, 44, 98, 30, 40, 58
1345 0

Answer : 5. "59"

Q:
The average of 5 numbers is 27. If one number is excluded, the average becomes 25. The excluded number is:
803 0

Answer : 2. "35 "

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 ? 1313 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: Average height of 40 girls is 148 cm. Average of remaining number is 150 cm. What will be the average of total class if there are 50 girls in the class? 1647 0

Answer : 3. "148.4 cm"
Explanation :
undefined

Q: Average age of a couple before 4 years, at the time of their marriage was 27 years. Now, the average age of the couple including their new born baby is 21 years. Find the present age of the baby? 1131 0

Answer : 4. "1 years"

Q: The average of first three numbers is three times of the fourth number. If the average of all four numbers is 5, then find the fourth number. 1075 0

Answer : 4. "4"
Explanation :
undefined

Q:
There are 45 male and 15 female employees in an office. If the mean salary of the 60 employees is Rs 4800 and the mean salary of the male employees is Rs 5000, then the mean salary of the female employees is
2178 0

Answer : 1. "Rs 4200"

Q:
The average of marks scored by the students of a class is 68. The average of marks of the girls in the class is 80 and that of the boys is 60. What is the percentage of boys in the class?
1210 0

Q: What will be the average of the following set of scores?59, 84, 44, 98, 30, 40, 58 1345 05df0b93a0183ea49d62ac296

Answer : 5. "59"

Q: The average of 5 numbers is 27. If one number is excluded, the average becomes 25. The excluded number is: 803 05f2a5dbe57c6a23ea65d765e

Answer : 2. "35 "

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 ? 1313 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: Average height of 40 girls is 148 cm. Average of remaining number is 150 cm. What will be the average of total class if there are 50 girls in the class? 1647 05d19cd2c1388cd24f0860eea

Answer : 3. "148.4 cm" Explanation :undefined

Q: Average age of a couple before 4 years, at the time of their marriage was 27 years. Now, the average age of the couple including their new born baby is 21 years. Find the present age of the baby? 1131 05d19d2be1388cd24f0860ef5

Answer : 4. "1 years"

Q: The average of first three numbers is three times of the fourth number. If the average of all four numbers is 5, then find the fourth number. 1075 05d19dc981388cd24f0860f15

Answer : 4. "4" Explanation :undefined

Q: There are 45 male and 15 female employees in an office. If the mean salary of the 60 employees is Rs 4800 and the mean salary of the male employees is Rs 5000, then the mean salary of the female employees is 2178 05de49793848f4a29cf45b0de

Answer : 1. "Rs 4200"

Q: The average of marks scored by the students of a class is 68. The average of marks of the girls in the class is 80 and that of the boys is 60. What is the percentage of boys in the class? 1210 05f2a5f24cef453383f1e38ad

Answer : 4. "60% "

Report Error

Report Error

Report Error

Report Error

Report Error

Report Error

Report Error

Report Error

Q:
What will be the average of the following set of scores?
59, 84, 44, 98, 30, 40, 58
1345 0

Q:
The average of 5 numbers is 27. If one number is excluded, the average becomes 25. The excluded number is:
803 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 ? 1313 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: Average height of 40 girls is 148 cm. Average of remaining number is 150 cm. What will be the average of total class if there are 50 girls in the class? 1647 0

Answer : 3. "148.4 cm"
Explanation :
undefined

Q: Average age of a couple before 4 years, at the time of their marriage was 27 years. Now, the average age of the couple including their new born baby is 21 years. Find the present age of the baby? 1131 0

Q: The average of first three numbers is three times of the fourth number. If the average of all four numbers is 5, then find the fourth number. 1075 0

Answer : 4. "4"
Explanation :
undefined

Q:
There are 45 male and 15 female employees in an office. If the mean salary of the 60 employees is Rs 4800 and the mean salary of the male employees is Rs 5000, then the mean salary of the female employees is
2178 0

Q:
The average of marks scored by the students of a class is 68. The average of marks of the girls in the class is 80 and that of the boys is 60. What is the percentage of boys in the class?
1210 0