

PEA305 GO302 Leaderboard Flashcard 2
Flashcard
•
Professional Development
•
Professional Development
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
The average price of three items of furniture is Rs. 15000. If their prices are in the ratio 3:5:7, what is the price of the cheapest item?
Back
9000
2.
FLASHCARD QUESTION
Front
Of three numbers, the second is twice the first and is also thrice the third. If the average of the three numbers is 44, what is the largest number?
Back
72
3.
FLASHCARD QUESTION
Front
The average of ten numbers is 7. If each number is multiplied by 12, what is the average of the new set of numbers?
Back
84
4.
FLASHCARD QUESTION
Front
The average age of 30 students of a class is 12 years. The average age of a group of 5 of the students is 10 years and that of another group of 5 of them is 14 years. What is the average age of the remaining students?
Back
12
5.
FLASHCARD QUESTION
Front
The average of 50 numbers is 38. If two numbers 45 and 55 are discarded, what is the average of the remaining numbers?
Back
37.5
6.
FLASHCARD QUESTION
Front
The mean of 100 observations was calculated as 40. One observation was misread as 83 instead of 53. What is the correct mean?
Back
39.7
7.
FLASHCARD QUESTION
Front
The average of six numbers is 30. If the average of first four is 25 and that of last three is 35, what is the fourth number?
Back
25
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