Q.21 What is the greatest common factor of the decimal numbers 1.08, 3.6 and 14.4?Ans 1. 0.722. 0.363. 0.184. 1.44Correct Ans Provided: 2

Q.14 A solid metallic sphere of radius 5 cm is melted to form 25 equal small solid spheres. The ratio of the surface area of this sphere to that of the small sphere is:Ans 1.

Q.12Ans 1. 2 : 12. 1 : 23. 2 : 34. 1 : 3Correct Ans Provided: 2

Q.18Ans 1. 2.452.  0.2453.  0.02454.  0.00245Correct Ans Provided: 3

Q.22 What will be the compound interest on Rs.8,000 at 10% per annum for 1½ years when the interest is compounded half-yearly?Ans 1. Rs.1,2612. Rs.1,3253. Rs.1,0204. Rs.1,451Correct Ans Provided: 1

Q.20 What is the compound ratio of 5 : 6, 8 : 9 and 11 : 14?Ans 1. 89 : 112. 110 : 1893. 40 : 994. 54 : 55Correct Ans Provided: 2