Average Questions Practice Question and Answer
8Q: 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? 1743 05d19dded7619fe30b9d345a3
5d19dded7619fe30b9d345a3- 130false
- 236false
- 346false
- 460true
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Answer : 4. "60"
Explanation :
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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. 1743 05d19dc981388cd24f0860f15
5d19dc981388cd24f0860f15- 14.5false
- 25false
- 32false
- 44true
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Answer : 4. "4"
Explanation :
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Q: A car travel to a place 150 km away at an average speed of 50 km/hr and returns it 30 km/hr. What is the average speed of the whole journey?
1734 15f4f65ee82369c1d61196a3e
5f4f65ee82369c1d61196a3e- 135.5 km/hrfalse
- 237.5 km/hrtrue
- 340.5 km/hrfalse
- 433.5 km/hrfalse
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Answer : 2. "37.5 km/hr"
Q: A batsman makes a score of 87 runs in the 17th match and thus increases his average by 3. Find his average after 17th match.
1729 15f4f64d40c72eb234932ccc6
5f4f64d40c72eb234932ccc6- 136false
- 237false
- 338false
- 439true
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Answer : 4. "39"
Q: In an examination, 40% of the candidates write their answers in Urdu and the rest in Marathi. The average marks of the candidates writing in Urdu is 74 and the average marks of the candidates writing in Marathi is 77. What are the average marks of all the candidates?
1724 06142c13bca41d4144a0d4d2f
6142c13bca41d4144a0d4d2f- 176.80false
- 275.40false
- 385.80false
- 475.80true
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Answer : 4. "75.80 "
Q: The average age of 30 students of a class is 15 years. A 20-year-old student left the class and replaced by two new students, whose age difference is 5 years. If the average age of all students is 15 years, then what will be ratio of young student to elder students.
1715 05f7ede6a0a69ab3becbf552f
5f7ede6a0a69ab3becbf552f- 14 :5false
- 23:5false
- 33:4true
- 44:3false
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Answer : 3. "3:4"
Q: Three science classes A, B and C take a Science test. The average score of class A is 83. The average score of class B is 76. The average score of class C is 85. The average score of class A and B is 79 and average score of class B and C is 81. Then the average score of classes A, B and C is
1710 0605a96288a26422fe255e0be
605a96288a26422fe255e0be- 180.5false
- 280false
- 381.5true
- 481false
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Answer : 3. "81.5"
Q: What decimal of a week is an hour?
1710 062bae81877dd9d735697da13
62bae81877dd9d735697da13- 10.062false
- 20.059false
- 30.0059true
- 40.0062false
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