【官方指南】新GRE数学真题OG例题讲解之三角形的内角和问题
- 2015年01月19日17:44 来源：小站整理
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18. In a triangle the three angles are given as X,X,Y. and the avg of two angles is 65, then what is the possible value of Y in the below options?
A. 60
B. 65
C. 70
D. 75
E. 80
Ans: E
19. x is an integer such that x > 3
Col a: number of even factors of 2x
Col b: number of odd factors of 3x
Ans: D
20. A set contains following no.'s a1,a2,a3.........a100
An= ((n+1)/n)+1) for n odd integer
An= -An-1 for n even integer
Find it's range...
21. lj+2l<3 and (k-1)^2=16
coll a:jk
col b:15
Ans: B
22. A price of product x is increased by p% to give new price y and then price of y is reduced by r% to give original price.
Col A: p
Col B: r
Ans: A
23. Three cuboids R, S and T were given…
Sides of R x, y, z
Sides of S x+10, y, z
Sides of T x, y, z+10
Col A: volume of s minus volume of R
Col B: volume of T minus volume of R
Ans: D
24. John's salary for a particular month is given by the equation: 1520 + 0.15x where x is the amount obtained from the sales made by John. In July 2000, John got $300 more than June 2000. By how much did John's sales increase in July 2000 as compared to June 2000?
Ans : $2000
25. A company has 54 employees. There are more birthdays on Wednesdays then on any other day of the week.
Col A: minimum no. of birthdays on Wednesdays
Col B: 8
Ans: A
