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monusangeeta
- Senior | Next Rank: 100 Posts
- Posts: 52
- Joined: Mon Jun 07, 2010 8:36 pm
- Location: India
- Thanked: 3 times
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- GMAT Score:720
Dear All,
I have couple of maths questions from GmatPrep that I am unable to solve. Request your help to suggest me solution and approach for the same.
Data Structure:
Q1: A certain list consists of several diff integers. Is the product of all the integers in the list is +ve.
1. The product of greatest and smallest of the integers in the list is +ve.
2. There is an even no. Of integers in the list.
Answer: Both together are sufficient, alone not.
According to me: The answer should be None of them are sufficient (E)
Q2: Store S sole a total of 90 copies of a certain book during the seven days of last week, and it sold different number of copies on any of two of the days. If for the seven days store S sold the greatest number of copies on Saturday and the second greatest number of the copies on Friday, did store S sell more than 11 copies on Friday?
1. Last week store S sold 8 copies of the book on Thursday.
2. Last week store S sold 38 copies of the book on Saturday.
Answer: statement 2 alone is sufficient but 1 is not.
According to me: Both are required, each alone is not sufficient.
Problem Solving
Q1: In a certain group of 10 members, 4 members teach only French, and the rest teach only spain or german. If the group is to choose a 3-member committee, which must have at least 1 french member, how many different committees can be chosen.
Ans: 100
According to me: To solve this problem answer should be: 4x9x8 = 288
Q2: At the end of the year, a certain credit card company pays a bonus of each of its credit card holders based on the amount, up to 10,00$, that a cardholder charged throughout the year. A 0.5% bonus is paid on the first 1000$ charged, a 1% bonus is paid on the next 2000$ charged and so on. What is the maximum annual bonus, in $?
Ans: 150$
According to me: The answer should be 200$; maximum annual bonus could be calculated on maximum amount i.e. 10,000$. hence 10,000X2% = 200$
Please suggest!!
Thanks
Sangeeta
I have couple of maths questions from GmatPrep that I am unable to solve. Request your help to suggest me solution and approach for the same.
Data Structure:
Q1: A certain list consists of several diff integers. Is the product of all the integers in the list is +ve.
1. The product of greatest and smallest of the integers in the list is +ve.
2. There is an even no. Of integers in the list.
Answer: Both together are sufficient, alone not.
According to me: The answer should be None of them are sufficient (E)
Q2: Store S sole a total of 90 copies of a certain book during the seven days of last week, and it sold different number of copies on any of two of the days. If for the seven days store S sold the greatest number of copies on Saturday and the second greatest number of the copies on Friday, did store S sell more than 11 copies on Friday?
1. Last week store S sold 8 copies of the book on Thursday.
2. Last week store S sold 38 copies of the book on Saturday.
Answer: statement 2 alone is sufficient but 1 is not.
According to me: Both are required, each alone is not sufficient.
Problem Solving
Q1: In a certain group of 10 members, 4 members teach only French, and the rest teach only spain or german. If the group is to choose a 3-member committee, which must have at least 1 french member, how many different committees can be chosen.
Ans: 100
According to me: To solve this problem answer should be: 4x9x8 = 288
Q2: At the end of the year, a certain credit card company pays a bonus of each of its credit card holders based on the amount, up to 10,00$, that a cardholder charged throughout the year. A 0.5% bonus is paid on the first 1000$ charged, a 1% bonus is paid on the next 2000$ charged and so on. What is the maximum annual bonus, in $?
Ans: 150$
According to me: The answer should be 200$; maximum annual bonus could be calculated on maximum amount i.e. 10,000$. hence 10,000X2% = 200$
Please suggest!!
Thanks
Sangeeta
