chitka ayaykyi

The slope of the line joining the points(x,-3) and (9,11) is 2 then x=…………
A.8 B.4 C.-4 D. 2 E.-2

1. The points A(2,-2) , B(4,2) and C is any point on AB. What is the slope of AC?
   A.1/2 B.1 C.2 D.-2 E.-1
   11.If the points D(-4,6), E(1,1) and F(x,y) are collinear, then x+y=…………
   A.2 B.1 C.3 D.-1 E.-2
2. Given that the points A(-5,4), B(3,5), C(7,-2) and D(-1,-3). The measurement of the angle
   between AC and BD is
   A.0° B.30° C.45° D.60° E.90°
   13.Given that the points P(-12,1), Q(9,3) and R(11,-18). Which of the following is true?
   1.R is on PQ 2.PQ⊥QR 3.△PQR is a right triangle
   A.1 only B. 2only C. 1and3 only D. 2and3 only E. 1,2 and 3
3. The line containing the points (k,3) and (-2,1) is parallel to the line through (5,k) and
   (1,0), then k=………
   A. 5:11 B. 3:8 C. 3:11 D. 3:10 E. 5:8
4. If a:b=3:5 and b:c=3:5, then a:b:c=………
   A. 2:3:5 B.3:5:7 C.6:10:15 D. 9:15:25 E.9:20:27
5. If a:b = 5:3 , then 3a+ 4b: 4a+3b is
   A. 27:36 B. 29:27 C. 27:29 D. 26:29 E. 17:19
6. If 2x +3y:2x+y=3:2, then x:y=……….
   A. 3:2 B. 2:3 C. 4:3 D. 3:4 E. None of them
7. The cost of 40 pens is k. 360 and the cost of 30 pencils is k. 90. The ratio of the cost of a
   pen to that of a pencil is
   A. 1:3 B. 1:4 C. 3:1 D. 4:1 E. 16:3
8. The ratio of the area of a circle of radius 7 cm to the area of a circle of radius 14 cm is
   A. 1:2 B. 2:3 C. 3:5 D. 4:9 E. 1:4
9. If the ratio of the areas of two circles is 49:25 , then the ratio of the diameters of these
   circles is
   A. 3:4 B. 4:5 C. 7:5 D. 6:5 E. 1:4
10. If x is 2/3 of y and y is 3/4 of z , then the ratio of z to x is