Average Practice Question and Answer
8 Q: Mrs. Reena’s family has 10 males and a few women, the average monthly consumption of Wheat per head is 8 kg. If the average monthly consumption of Wheat per head be 10 kg in the case of males and 6 kg in the case of women, find the number of women in Reena’s family?
1019 05eaba8fb1cb95f071aa2902a
5eaba8fb1cb95f071aa2902a- 12false
- 24false
- 36false
- 410true
- 58false
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Answer : 4. "10"
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 ? 1311 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: If a,b,c,d,e,f,g are seven consecutive odd number, their average is
3292 05e84259241a4013349c11af8
5e84259241a4013349c11af8- 1(a+6)true
- 2(abcdefg/7)false
- 3(a+b+c+d+e+f+g)/7false
- 4None of thesefalse
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Answer : 1. "(a+6)"
Q: A batsman in his 20th innings make a score of 110 and there by increases his average by 4. What is his average after 20 innings?
2947 05e7f3aa41425f51f3ac38720
5e7f3aa41425f51f3ac38720- 134true
- 243false
- 336false
- 430false
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Answer : 1. "34 "
Q: Find the average of the following set of numbers 148, 88, 184, 166, 96, 122
1611 05e6c90218fcee56af205b0c9
5e6c90218fcee56af205b0c9- 1146false
- 2142false
- 3136false
- 4132false
- 5None of thesetrue
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Answer : 5. "None of these"
Q: The average age of 30 boys in a class is 15 years. One boy, aged 20 years, left the class, but two new boys came in his place whose age differs by 5 years. If the average age of all the boys now in the class becomes 15 years, the age of the younger newcomer is:
1773 05e326ddbd0aa6f23a8fc5141
5e326ddbd0aa6f23a8fc5141- 120 yearsfalse
- 215 yearstrue
- 310 yearsfalse
- 48 yearsfalse
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Answer : 2. "15 years "
Q: The average weight of 14 children is 22 kg. If the weight of the teacher is also included, then the average weight becomes 23 kg. What is the teacher's weight?
3382 05e293a199d14251e9f423dda
5e293a199d14251e9f423dda- 134 kgfalse
- 237 kgtrue
- 340 kgfalse
- 435 kgfalse
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Answer : 2. "37 kg"
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
5d19cc8e7619fe30b9d34583- 156false
- 262true
- 350false
- 458false
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Answer : 2. "62"
Explanation :
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