Average Questions Practice Question and Answer
8 4 Answer : 2. "Rs.310"
4 Answer : 4. "60"
4 Q:
5dcd4384f50c4b23b08334c1 4 Answer : 2. "45 yrs"
4 Answer : 3. "148.4 cm"
4 4 Answer : 4. "4"
4 Q:
5de49793848f4a29cf45b0de
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- 1544 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 three numbers is 40. First of them is two times of the seconds and the second is three time of the third. So, what is the difference between the largest and smallest number? 1097 05d19dded7619fe30b9d345a3
5d19dded7619fe30b9d345a3- 130false
- 236false
- 346false
- 460true
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Answer : 4. "60"
Explanation :
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Q: The average of all prime numbers 21 to 50 is (round off to one decimal number)
3977 05dcd4384f50c4b23b08334c1
5dcd4384f50c4b23b08334c1- 135.9true
- 234.8false
- 333.7false
- 432.9false
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Answer : 1. "35.9 "
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 ? 1320 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? 1648 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? 1136 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. 1077 05d19dc981388cd24f0860f15
5d19dc981388cd24f0860f15- 14.5false
- 25false
- 32false
- 44true
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Answer : 4. "4"
Explanation :
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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
2183 05de49793848f4a29cf45b0de
5de49793848f4a29cf45b0de- 1Rs 4200true
- 2Rs 4500false
- 3Rs 5600false
- 4Rs 6000false
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Answer : 1. "Rs 4200"
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