Q1. How many small squares are crossed by the diagonal in a rectangular table formed by 16 x 17 small squares?
Q2. A right circular cone is cut(parallel to its base) into 5 slices, all of equal height. What is the ratio of the volume of the middle slice to that of the biggest slice?
Q3. A number N has 3 prime factors and 27 factors which are perfect cubes. If 125 of the factors of N are perfect squares, how many factors does N have?
Q4. In a cyclic quadrilateral ABCD, if AB = 2, BC = 3, CD = 4 and DA = 5, what is the ratio of the lengths of the diagonals?
Q5. What is the length of the side of a square inscribed in a regular hexagon of side 2?
Q6. Find the maximum possible perimeter (in cm) of a rectangle of area 8√3 sq cm drawn inside an equilateral triangle of side 10 cm, where the vertices of the triangle lie on the triangle?
Q7. A and B run a 10km race. In the first heat, A gives B a head start of 500 mts and beats him by 50 seconds. In the second heat, A gives B a head start of 80 seconds and is beaten by 100 mts. What is the ratio of speeds of A and B? __________________
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Its 16 + 17 = 31
Not sure please confirm
Q2. A right circular cone is cut(parallel to its base) into 5 slices, all of equal height. What is the ratio of the volume of the middle slice to that of the biggest slice?
a. 27: 125 b. 19: 61 c. 37 : 91 d. 4 : 25
Sol.
Ans . 19:61
Q4. In a cyclic quadrilateral ABCD, if AB = 2, BC = 3, CD = 4 and DA = 5, what is the ratio of the lengths of the diagonals?
a. 7 : 11 b. 11 : 13 c. 10 : 11 d. 13 : 15
Sol.
Ans. 11 : 13
Q4. In a cyclic quadrilateral ABCD, if AB = 2, BC = 3, CD = 4 and DA = 5, what is the ratio of the lengths of the diagonals?
a. 7 : 11 b. 11 : 13 c. 10 : 11 d. 13 : 15
Sol.
Ans. 11 : 13
Q5. What is the length of the side of a square inscribed in a regular hexagon of side 2?
a. √3 + 1 b. 6 - 2√3 c. √2 + √3 d. 4 - √3
Ans. 6 - 2√3
Q3. A number N has 3 prime factors and 27 factors which are perfect cubes. If 125 of the factors of N are perfect squares, how many factors does N have?
a. 648 b. 729 c. 900 d. 1000
Ans. 729
Q6. Find the maximum possible perimeter (in cm) of a rectangle of area 8√3 sq cm drawn inside an equilateral triangle of side 10 cm, where the vertices of the triangle lie on the triangle?
a. 8√3 + 4 b. 8√3 + 8 c. 16 + 2√3 d. 12 + 4√3
Ans. 16 + 2√3
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