GRE Numeric Entry SAMPLE QUESTIONS-4
GRE Numeric Entry Sample Questions
GRE Numeric Entry Sample Questions 1 | GRE Numeric Entry Sample Questions 2 | GRE Numeric Entry Sample Questions 3 | GRE Numeric Entry Sample Questions 4 | GRE Numeric Entry Sample Questions 5 | GRE Numeric Entry Sample Questions 6 | GRE Numeric Entry Sample Questions 7 | GRE Numeric Entry Sample Questions 8 | GRE Numeric Entry Sample Questions 9 | GRE Numeric Entry Sample Questions 10
1. Question :Find the value of (sinA+sinA^2) if cosA^2+cosA^4=1
[sinA^2=sinA*sinA]
Correct Answer: 1
Explanation:We know that sinA^2+cosA^2=1
cosA^2+cosA^4=1
1-cosA^2=cosA^4
sinA^2=cosA^4
Taking square root of both sides, we get
sinA=cosA^2
sinA=1-sinA^2
sinA+sinA^2=1
2. Question :How many straight lines can be drawn by joining 12 points in a plane when no three points are collinear?
Correct Answer: 66
Explanation:The number of straight lines is given by C(12,2)
C(12,2)=12!/[(12-2)!2!]
=12!/(10!2!)
=12*11/2
= 6*11=66
3. Question :How many three digit even numbers exist with distinct digits?
Correct Answer: 328
Explanation:The numbers shall contain the digits 0,2,4,6 and 8 only in the units place.
Number of numbers that end in zero = 9*8*1=72
Number of numbers that end in any one of 2, 4, 6 and 8 = 8*8*4=256
GRE Numeric Entry Sample Questions
GRE Numeric Entry Sample Questions 1 | GRE Numeric Entry Sample Questions 2 | GRE Numeric Entry Sample Questions 3 | GRE Numeric Entry Sample Questions 4 | GRE Numeric Entry Sample Questions 5 | GRE Numeric Entry Sample Questions 6 | GRE Numeric Entry Sample Questions 7 | GRE Numeric Entry Sample Questions 8 | GRE Numeric Entry Sample Questions 9 | GRE Numeric Entry Sample Questions 10