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Q:
The average of 12 number is 42. If a 13th number is added, then the average becomes 44. What is the 13th number?
1445 0

Answer : 1. "68"

Q: The average of 11 results is 50. If the average of first six results is 49 and and that of last six is 53, find the sixth result? 1381 0

Answer : 2. "62"
Explanation :
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Q:
The average salary of all the staff in an office of a corporate house is Rs 5,000. The average salary of the officers is Rs 14,000 and that of the rest is Rs 4,000. If the total number of staff is 500, the number of officers is
2684 0

Answer : 4. "50"

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 ? 1310 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? 1643 0

Answer : 3. "148.4 cm"
Explanation :
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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? 1128 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. 1072 0

Answer : 4. "4"
Explanation :
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Q:
The average per day income of A, B and C is Rs. 450. If the average per day income of A and B be Rs. 400 and that of B and C be Rs. 430, the per day income of B is:
1360 0

Q: The average of 12 number is 42. If a 13th number is added, then the average becomes 44. What is the 13th number? 1445 05eb94bda43b27164c8e427e7

Answer : 1. "68"

Q: The average of 11 results is 50. If the average of first six results is 49 and and that of last six is 53, find the sixth result? 1381 05d19cc8e7619fe30b9d34583

Answer : 2. "62" Explanation :undefined

Q: The average salary of all the staff in an office of a corporate house is Rs 5,000. The average salary of the officers is Rs 14,000 and that of the rest is Rs 4,000. If the total number of staff is 500, the number of officers is 2684 05dbfaf81656bc31fa31649fc

Answer : 4. "50"

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 ? 1310 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? 1643 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? 1128 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. 1072 05d19dc981388cd24f0860f15

Answer : 4. "4" Explanation :undefined

Q: The average per day income of A, B and C is Rs. 450. If the average per day income of A and B be Rs. 400 and that of B and C be Rs. 430, the per day income of B is: 1360 05dcba2f445ad6b59c82d8685

Answer : 2. "Rs . 310 "

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Q:
The average of 12 number is 42. If a 13th number is added, then the average becomes 44. What is the 13th number?
1445 0

Q: The average of 11 results is 50. If the average of first six results is 49 and and that of last six is 53, find the sixth result? 1381 0

Answer : 2. "62"
Explanation :
undefined

Q:
The average salary of all the staff in an office of a corporate house is Rs 5,000. The average salary of the officers is Rs 14,000 and that of the rest is Rs 4,000. If the total number of staff is 500, the number of officers is
2684 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 ? 1310 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? 1643 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? 1128 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. 1072 0

Answer : 4. "4"
Explanation :
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Q:
The average per day income of A, B and C is Rs. 450. If the average per day income of A and B be Rs. 400 and that of B and C be Rs. 430, the per day income of B is:
1360 0