Please help with these questions form GMATPrep 1, which i got wrong. If any of these questions were discussed earlier please give the link. Will post OAs later.
1. For every positive integer n, the function h(n) is defined to be product of all even integers form 2 to n, inclusive. If p is the smallest prime factor of h(100)+1, then p is
A. between 2 and 10
B. between 10 and 20
C. between 20 and 30
D. between 30 and 40
E. greater than 40
2. The number of stamps Kaye and Alberto had were in the ration 5:3 respectively . After Kaye gave Alberto 10 of her stamps , the ratio of the number of stamps Kaye had to number Alberto had was 7:5. As a result of this gift, Kaye had how many more stamps than Alberto?
A. 20
B. 30
C. 40
D. 60
E. 90
In my calculations I am getting 60, but this is not correct.
3. At a certain university , the ratioof the number of teachers to number of students in any course must always be greater than 3:80. What is the maximum number of students possible in a course that has 5 teachers?
A. 130
B. 131
C. 132
D. 133
E. 134
1. For every positive integer n, the function h(n) is defined to be product of all even integers form 2 to n, inclusive. If p is the smallest prime factor of h(100)+1, then p is
A. between 2 and 10
B. between 10 and 20
C. between 20 and 30
D. between 30 and 40
E. greater than 40
2. The number of stamps Kaye and Alberto had were in the ration 5:3 respectively . After Kaye gave Alberto 10 of her stamps , the ratio of the number of stamps Kaye had to number Alberto had was 7:5. As a result of this gift, Kaye had how many more stamps than Alberto?
A. 20
B. 30
C. 40
D. 60
E. 90
In my calculations I am getting 60, but this is not correct.
3. At a certain university , the ratioof the number of teachers to number of students in any course must always be greater than 3:80. What is the maximum number of students possible in a course that has 5 teachers?
A. 130
B. 131
C. 132
D. 133
E. 134
