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04 Mar 2019, 14:38
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
81% (02:13) correct
19%
(02:22)
wrong
based on 98
sessions
History
Date
Time
Result
Not Attempted Yet
In a certain month, a pizzeria sold 75 pizzas in the first week, twice as many in the second week as in the first, two thirds more in the third week than in the first, and three fifths as many in the fourth week as in the second. What is the average number, per week, of pizzas sold by the pizzeria?
A. 100
B. 105
C. 110
D. 115
E. 120
A. 100
B. 105
C. 110
D. 115
E. 120
eabhgoy
Joined: 12 Apr 2011
Last visit: 14 Jan 2021
Posts: 112
Given Kudos: 85
Location: United Arab Emirates
Concentration: Strategy, Marketing
Schools: CBS '21 Yale '21 INSEAD Jan'21 Intake IMD '21 (A)
GMAT 1: 670 Q50 V31
GMAT 2: 720 Q50 V37
GPA: 3.2
WE:Marketing (Telecommunications)
04 Mar 2019, 21:15
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SajjadAhmad
75
2*75 = 150
75+((2/3)*75) = 125
3/5 * 150 = 90
75+150+125+90 = 440
440/4 = 110
Hence C is the correct answer.
04 Mar 2019, 22:13
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Solution
Given:
- • In a certain month, a pizzeria sold 75 pizzas in the first week, twice as many in the second week as in the first, two thirds more in the third week than in the first, and three fifths as many in the fourth week as in the second.
To find:
- • The average number of pizzas sold by the pizzeria per week.
Approach and Working:
- • Number of pizzas sold on the first week = 75
• Number of pizzas sold on the second week = 75 x 2 = 150
• Number of pizzas sold on the first week = 75 + 2/3 x 75 = 75 + 50 = 125
• Number of pizzas sold on the first week = 150 x 3/5 = 90
Total number of pizzas sold in the whole month = (75 + 150 + 125 + 90) = 440
- • Therefore, average number of pizzas sold in the month = 440/4 = 110
Hence, the correct answer is option C.
Answer: C
