Source: Official Guide
The sum of 4 different odd integers is 64. What is the value of the greatest of these integers?
(1) The integers are consecutive odd numbers
(2) Of these integers, the greatest is 6 more than the least.
The OA is D
The sum of 4 different odd integers is 64. What is the value
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Last edited by BTGmoderatorLU on Thu Aug 09, 2018 3:01 pm, edited 1 time in total.
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Given: 50% of workers = less than equal to 30 yearsBTGmoderatorLU wrote:Source: GMAT Club Tests
50% of the factory workers are not older than 30 years old. What percent of the factory workers are younger than 40 years old?
1. 30% of the factory workers are older than 30 but younger than 40 years old.
2. 20% of the factory workers are at least 40 years old.
The OA is D.
Question: What percent of workers are less than 40 years?
Let's take each statement one by one.
1. 30% of the factory workers are older than 30 but younger than 40 years old.
=> 30% of workers = (30-40)
Thus, the percentage of workers less than 40 years
= the percentage of workers less than equal to 30 years + the percentage of workers between 30 and 40
= 50 + 30 = 80%. Sufficient
2. 20% of the factory workers are at least 40 years old.
=> 20% of workers = more than equal to 40 years
Thus, the percentage of workers less than 40 years = 100 - 20% = 80%. Sufficient.
The correct answer: D
Hope this helps!
-Jay
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