(20080111) 1. Given A1, A2, A3,......An,... is a series such that An= An - An-1, for 2>n. If A1= -5, A2= 4, find the sum of first 100 numbers of the series?
2. Given a triangle RST, RS = 4 & ST = 3 and the angles at R,S,T are less than 90 degrees. If TR = y then the range of y is?
3. In a class of 20 students, one half of the students are boys, if a teacher has to select 7 students and the first 6 are girls
Col a: What is the probability that the 7th student is a girl
Col b:2/7
4. Train A is traveling on a straight track at a constant speed of 60 km/hr & Train B is traveling on a straight track at a constant speed of 100km/hr
Col a: distance traveled by train A
Col b: distance traveled by train B
6. Given a four sided Polygon is with 4 angles x, 2x, 3x, 4x. Find x?
Ans: 36
7. Find the value of 0.01590/30.10....
8. Given two figures one is....a circle with radius 'r'.. inscribed in a square, and other is a square of diagonal 'r' inscribed in a circle.
Col a: Area of shaded region in figure A
Col b: Area of shaded region in figure B
9. Find (1/16)th% 25?
10. In a triangle ABC, Angle B+Angle C =90.
Col a: side AB
Col b: side CA
Ans: D
(20080113) 1. a1=-4, a2=5 일때
an=an-1 - an-2 이고,
a1부터 a100까지 합을 구하라 이문제가 하나 있었구요
2. (2,7)과 (8,3)을 지나는 직선의 x절편과 y절편 중 큰 값을 구하는게 나왔습니다.
3(1번). 원안에 12각형을 그렸을때 하나의 각의 크기는 얼마냐.
제 계산에는 150도가 나왔던 거 같습니다.
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