GMAT-QUANT STUDY GUIDE EXAM QUESSTIONS WITH CORRECT ANSWERS

GMAT-QUANT STUDY GUIDE EXAM QUESSTIONS WITH CORRECT ANSWERS Inscribed triangle inside a circle with diameter as a side - Answer-Angle facing diameter is the right triangle Inscribed angle - ratio to central angle - Answer-Inscribed angle * 2 = Central angle 4^17 - 2^28 -- what is the greatest prime factor? - Answer-2^(2 * 17) - 2^28 2^28*(2^6-1) 2^28(2^3+1)(2^3-1) 2^28(9*7) 2^28(3*3*7) PRIME FACTOR -- SO PRIME FACTORIZATION (if number isn't there, then you're ok) If x, y, and z are integers greater than 1, what is the value of x + y + z? "(1) xyz = 70 "(2) x/yz=7/10" - Answer-(1) prime factorization of 70 - 2 * 5 * 7 (only numbers that can be it if x,y,z > 1 (2) NS can have x = 7 and y and z = 2 and 5 or x = 14 and y and z = 4 10 A *For every positive even integer n, the function h(n) is defined to be the product of all the even integers from 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" - Answer-h(n) = 2*4*6*8... tec. can also be written h(n) = 2(1)2(2)2(3)2(4)2(5)...2(50)