quantitative aptitude - test-15

Quantitative Aptitude


1. If 3x - 3x-1 = 18, then the value of xx is equal to:


2. H.C.F. of two polynomials is a + 5 and their L.C.M. is (a + 5) (a + 4) (a - 1). If one of the polynomial is a2 + 4a - 5, then the other polynomial is:


3. If the height of a cone is increased by 200%, then its volume will increase by:


4. If a cube of maximum possible volume is cut off from a solid sphere of diameter d, then the volume of the remaining waste material of the sphere would be equal to:


5. A discount of 30% on the marked price of a toy reduces its S.P. by Rs 30. What is the new S.P. ?



6. The factors of a3 + 4a2 - 11a - 30 are:


7. Even after reducing the marked price of a transistor by Rs 32, a shopkeeper makes a profit of 15%. If the cost price be Rs 320, what percentage of profit would he have made if he had sold the transistor at the marked price ?


8. A circus tent is cylindrical to a height of 3 m and conical above it. If its diameter is 105 rn and slanting height of the cone is 53 m, then the area of the, canvas used is equal to:


9. If 2x - ky + z = 0 is a factor of
9y2 - Z2 - 2xz + 6xy, then the value of k is equal to:


10. The sum of two numbers added to the sum of their squares is 42. If the product of the number is 15, then the numbers are:


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