Average Questions Practice Question and Answer
8 Q: The average of three numbers is 40. The first number is twice the second and the second one is thrice the third number. The difference between the largest and the smallest numbers is
1008 05ef154ac2c39485d739de5d9
5ef154ac2c39485d739de5d9- 136false
- 260true
- 330false
- 446false
- Show Answer
- Workspace
- SingleChoice
Answer : 2. " 60"
Q: The average age of P, Q, R, and S is 30 years. How old is R?
I. The sum of ages of P and R is 60 years.
II. S is 10 years younger than R.
5440 05ee9aaafeee45c3b8374b264
5ee9aaafeee45c3b8374b264I. The sum of ages of P and R is 60 years.
II. S is 10 years younger than R.
- 1I alone sufficient while II alone not sufficient to answerfalse
- 2II alone sufficient while I alone not sufficient to answerfalse
- 3Either I or II alone sufficient to answerfalse
- 4Both I and II are not sufficient to answertrue
- Show Answer
- Workspace
- SingleChoice
Answer : 4. "Both I and II are not sufficient to answer"
Q: The average of 8 readings is 24.3, out of which the average of first two is 18.5 and that of next three is 21.2. If the sixth reading is 3 less than seventh and 8 less than eight, what is the sixth reading?
2485 05ee0c6df8c4c964f73d9910d
5ee0c6df8c4c964f73d9910d- 124.8false
- 226.5false
- 327.6true
- 429.4false
- Show Answer
- Workspace
- SingleChoice
Answer : 3. "27.6"
Q: The average age of students in a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is:
1443 05ed73fd04bd6e60aba370eb4
5ed73fd04bd6e60aba370eb4- 11: 4false
- 24 : 2false
- 32 : 3true
- 43 : 4false
- Show Answer
- Workspace
- SingleChoice
Answer : 3. "2 : 3"
Q: In a class of 66 students there are 33 girls. The average weight of these girls is 61 Kg and average weight of the full class is 66 kgs. What is the average weight of the boys of the class?
1207 05ecf398987aeb56649598c52
5ecf398987aeb56649598c52- 171true
- 272false
- 373false
- 469false
- Show Answer
- Workspace
- SingleChoice
Answer : 1. "71"
Q: The average weight of A B and C is 50 kg . if the average weight of A and B be 48 kg and that of B and C be 45 kg , then find the weight of B ?
1051 05ec71ebc0b951b14d4184d5c
5ec71ebc0b951b14d4184d5c- 130false
- 235false
- 336true
- 440false
- Show Answer
- Workspace
- SingleChoice
Answer : 3. "36 "
Q: The average of five numbers is 27. If one number is excluded. The average becomes 25. The excluded number is
1013 05ec4ab748463ff0219023e19
5ec4ab748463ff0219023e19- 125false
- 227false
- 330false
- 435true
- Show Answer
- Workspace
- SingleChoice
Answer : 4. "35"
Q: The average of 12 number is 42. If a 13th number is added, then the average becomes 44. What is the 13th number?
1688 05eb94bda43b27164c8e427e7
5eb94bda43b27164c8e427e7- 168true
- 272false
- 370false
- 474false
- Show Answer
- Workspace
- SingleChoice