Average Practice Question and Answer
8 4 Answer : 2. "Rs.310"
4 Q:
5f2946eccef453383f1af559 4 Answer : 2. "45 yrs"
4 Answer : 3. "148.4 cm"
4 4 Answer : 4. "4"
4 Q:
5dcba2f445ad6b59c82d8685 4 Q:
5f2a4aae57c6a23ea65cf8ed
Q: The average daily income of A, B and C is Rs.450. If the average daily income of A and B is Rs.400. B and C is Rs.430; then the daily income of B will be- 1536 05d19db257619fe30b9d3459e
5d19db257619fe30b9d3459e- 1Rs.300false
- 2Rs.310true
- 3Rs.415false
- 4Rs.425false
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Answer : 2. "Rs.310"
Explanation :
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Q: The average of eight successive numbers is 6.5. The average of the smallest and the greatest numbers among them will be:
2055 05f2946eccef453383f1af559
5f2946eccef453383f1af559- 14false
- 26.5true
- 37.5false
- 49false
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Answer : 2. "6.5"
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
5b5cc6c9e4d2b4197774df83- 142 yrsfalse
- 245 yrstrue
- 336 yrsfalse
- 438 yrsfalse
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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
5d19cd2c1388cd24f0860eea- 1148.8 cmfalse
- 2149.2 cmfalse
- 3148.4 cmtrue
- 4144 cmfalse
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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? 1129 05d19d2be1388cd24f0860ef5
5d19d2be1388cd24f0860ef5- 14 yearsfalse
- 23 yearsfalse
- 32 yearsfalse
- 41 yearstrue
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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
5d19dc981388cd24f0860f15- 14.5false
- 25false
- 32false
- 44true
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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 05dcba2f445ad6b59c82d8685
5dcba2f445ad6b59c82d8685- 1Rs . 300false
- 2Rs . 310true
- 3Rs. 415false
- 4Rs . 425false
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Answer : 2. "Rs . 310 "
Q: If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55 and 60, then the average marks of all the students is:
804 05f2a4aae57c6a23ea65cf8ed
5f2a4aae57c6a23ea65cf8ed- 155false
- 254.68true
- 353.33false
- 4None of thesefalse
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Answer : 2. "54.68 "
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