1. If the area of two circles are in the ratio 169 : 196 then the ratio of their radii is
A. 11
B. 12
C. 13
D. 14
E. None of the above
Ans : D
2. Which of the following is the greatest ?
A.40% of 30
B. 3/5 of 25
C.6.5% of 200
D. Five more than the square of 3
E. 1/2-4
Ans : E
3. Two identical taps fill 2/5 of a tank in 20 minutes. When one of the taps goes dry in how many minutes will the remaining one tap fill the rest of the tank ?
A. 5 minutes
B 10 minutes
C 15 minutes
D 20 minutes
E None of the above
Ans : C
4.If the value of XYZ Company stock drops from $25 per share to $21 per share, what is the percent of the decrease?
A 4
B 8
C 12
D 16
E 20
Ans : D
5. A student finds the average of 10 positive integers. Each integer contains two digits. By mistake, the boy interchanges the digits of one number say ba for ab. Due to this, the average becomes 1.8 less than the previous one. What was the difference of the two digits a and b?
A 8
B 6
C 2
D 4
Ans : C
6. Average cost of 5 apples and 4 mangoes is Rs. 36. The average cost of 7 apples and 8 mangoes is Rs. 48. Find the total cost of 24 apples and 24 mangoes.
A 1044
B 2088
C 720
D 324
Ans : B
7. If a rectangle's length and width are both doubled, by what percent is the rectangle's area increased?
A 50
B 100
C 200
D 300
E 400
Ans : D
8.An empty swimming pool can be filled to capacity through an inlet pipe in 3 hours, and it can be completely drained by a drainpipe in 6 hours. If both pipes are fully open at the same time, in how many hours will the empty pool be filled to capacity?
A 4
B 4.5
C 5
D 5.5
E 6
Ans : E
9.At a certain ice cream parlor, customers can choose among five different ice cream flavors and can choose either a sugar cone or a waffle cone. Considering both ice cream flavor and cone type, how many distinct triple-scoop cones with three different ice cream flavors are available?
A 12
B 16
C 20
D 24
E 30
Ans : C
10.If a building b feet high casts a shadow f feet long, then, at the same time of day, a tree t feet high will cast a shadow how many feet long?
A ft/b
B fb/t
C b/ft
D tb/f
E t/fb
Ans : A
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