গণিত

1. Two sides of a triangle are 7 and 16. Which of the following is not the length of the third side?

a. 22

b. 17

c. 12

d. 9

2. $5 a^{2} - 4 a - 3 (a^{2} + a + 4) = 0$ What is the sum of the potable value of a?

a. 3

b. 3.5

c. 4

d. 4.5

3. The radius of circle A is r, and the radius of circle B is 3/4r. What is the ratio of the area of circle A to the area of circle B?

a. 16 to 9

b. 9 to 16

c. 1 to 4

d. 4 to 3

4. A certain jar contain 60 jellybeans where 22 white, 18 green, 11 yellow, 5 red and 4 purple . If a jellybean is to be chosen at random , what is the probability that the jellybean will be neither red not purple?

a. 0.09

b. 0.85

c. 0.54

d. 0.91

5. A car got 33 miles per gallon using gasoline that coast $295 per dollars. Approximatley what was the cost , in dollars, of the gasoline used in driving the car 350 miles?

a. $10

b. $31

c. $40

d. $50

6. Two ships are sailing in the sea on the two sides of a lighthouse . The of elevation of the top of the lighthouse an observed from the two ships are 30 degree and 45 degree respectively . If the lighthouse is 100 m high, the distance between the two ships is-

a. 175m

b. 200 m

c. 273m

d. 300m

7. On his way home from shopping. Monika must travel due south for 5 miles and due east for another 12 miles to reach his mouse. If she could travel in a straight line from the would she travel?

a. 1

b. 4

c. 8

d. 13

8. The base of a triangle is twice its height, which is 5cm . What is the area , in square centimeters, of the triangle?

a. 6.25

b. 10

c. 12.5

d. 25

9. If isosceles △ DEF has sides of length 11.5 and 13.7 m which of the following cound be the perimeter of the trigangle?

a. 2.1

b. 12.0

c. 25.2

d. 36.7

10. If 6 students have an average (arithmetic mean) score of 88 on an exam, and one of those students scored a 93 on the exam, what is the average score on this exam for the other 5 students?

a. 84

b. 85

c. 86

d. 87