1. If the sum of the dimensions of a rectangular parallele piped is 24 cm and the length of the diagonal is 15 cm, then the total surface area of it is
A. 420 cm^2

B. 275 cm^2

C. 351 cm^2

D. 378 cm^2

 

2. A flask in the shape of a right circular cone of height 24 cm is filled with water. The water is poured in a right circular cylindrical flask whose radius is 1/3rd of the radius. Of the base of the circular cone. Then, the height of the water in the cylindrical flask is
A. 32 cm

B. 24 cm

C. 48 cm

D. 72 cm

 

3. If the three medians of a triangle are same, then the triangle is
A. equilateral

B. isosceles

C. right angled

D. obtuse angled

 

4. The external fencing of a circular path around a circular plot of land is 33 m more than its interior fencing. The width of the path around the plot is
A. 5.52 m

B. 5.25 m

C. 2.55 m

D. 2.25 m

 

5. A horse takes 2(1/2) s to complete a round around a circular field. If the speed of the horse was 66 m/s, then the radius of the field is [Given π=22/7]
A. 25.62 m

B. 26.52 m

C. 25.26 m

D. 26.25 m

 

6. The perimeters of two similar triangles ∆ABC and ∆PQR are 36 cm and 24 cm respectively. If PQ=10cm, the AB is
A. 15 cm

B. 12 cm

C. 14 cm

D. 26 cm

 

7. If the sides of a right angled triangle are three consecutive integers, then the length of the smallest side is
A. 3 units

B. 2 units

C. 4 units

D. 5 units

 

8. Two circles intersect each other at the points A and B. A straight line parallel to AB intersects the circles at C, D, E and F. If CD=4.5 cm, then the measure of EF is
A. 1.50 cm

B. 2.25 cm

C. 4.50 cm

D. 9.00 cm

 

 

Answers:
1.C 2.D 3.A 4.B 5.D 6.A 7.A 8.C