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If 8 athletes run a race and no two athletes finish exactly together, the number of different possible results for the first, second and third positions is

A 56
B 300
C 360
D 336

2/5 of total number of students of a school come by car while 1/4 of students come by bus to school. All the other students walk to school of which 1/3 walk on their own and the rest are escorted by their parents. If 224 students come to school walking on their own, how many students study in that school?

A 1220
B 1560
C 1920
D 2023

100 cards are placed face down in a line. Alice turns every second one over, starting with the second in line. Brenda then turns over every third card that is still face down (so starts with the fifth card in the line). After this, how many cards remain face down?

A 24
B 28
C 34
D 46

The base of a parallelogram is (2x + 3 units) and the corresponding height is (2x – 3 units). Find the area of the parallelogram in terms of x. What will be the area of parallelogram of x = 30 units?

A2658 Square units
B 3591 Square units
C 7865 Square units
D 8234 Square units

The given figure represents a right square pyramid crystal in Prateek's collection. Which best describes all the faces of the pyramid?


A1 square and 4 equilateral triangles
B1 square and 3 equilateral triangles
C1 square and 4 isosceles triangles
D1 square and 3 isosceles triangles

If   , then the value of a is _______.

A4
B5
C6
D8

One of the factors of a² - 2ab - c² + b² is ________.

A(a - b + c)
B(a + b + c)
C(a + b - c)
DNone of these

Find the altitude of a rhombus whose area is 48 m² and perimeter is 64 m.

A4 m
B5 m
C6 m
D3 m

Section ABC and section EBD of the flower garden contain roses.
AE and CD are straight line segments. If angle ABC measures 38º, what is the measure of angle EBD?


A38º
B52º
C90º
D142º

Given the set of six numbers below: 11; 31; 19; 3; 10; 6 Three numbers are selected from the above set and added together. The remaining three numbers are also added together. These possible two sums are then multiplied to get a product. The maximum product is

A1200
B1400
C1600
D1800