Although it is not difficult, it is still a bit difficult to get full marks, because it still takes some efforts to reach the correct rate of 100% if there are no mistakes. Gre math is not difficult, but you must be able to express some math clearly in English. If you can't understand the meaning of the topic in the examination room, the difficulty of the topic is meaningless to you, right?
Post two questions and feel the difficulty ~
The set t of 1. consists of integers between 1 1 and 100.
Quantity a: 4 times the number of integers in the set t that are multiples of 4.
Quantity b: 5 times the number of integers in the set t that are multiples of 5.
A. quantity a is larger.
B. the quantity b is larger.
C. these two quantities are equal.
D. this relationship cannot be determined from the information given.
Answer a
Qa: 4 times the digits of all multiples of 4 in t;
Qb: 5 times the number of multiples of all 5 in t.
According to arithmetic progression's term number formula: term number = (last term-first term)/tolerance+1.
a =[( 100- 12)/4+ 1]* 4 = 92
b =[( 100- 15)/5+ 1]* 5 = 90
2. Quantity A: the area of a triangular area with a circumference of 8.
Quantity B: 8.
A. quantity a is larger.
B. the quantity b is larger.
C. these two quantities are equal.
D. this relationship cannot be determined from the information given.
Answer b
Q&A: The perimeter of a triangle is fixed. When a triangle is a regular triangle, its area is the largest. At this time, the side length is 8/3 and the area is 16√3/9.
16√3/9 & lt； eight