Quantitative Aptitude Test 39

1. A shopkeeper earns a profit of 12% on selling a book at 10% discount on the printed price. The ratio of the cost price to the printed price of the book is :

2. It is required to construct a big rectangular hall to accommodate 500 persons, allowing 22.5 m³.space per person. The height of the hall is to be kept at 7.5 m while the total inner surface area of the walls must be 1200 sq. m. The length and breadth of the hall must, respectively, be:

3. A hemispherical bowl B₁ and a hollow right circular cylinder B₂ (having length equal to its radius) have the same diameter equal to the length of a side of a hollow cubical box B₃. Water is filled in all these vessels up to the same level and such that hen-dspherical bowl is full of water and the volumes of filled water are V₁, V₂ and V₃, respectively, in B₁, B₂ and B₃, then:

4. A retailer buys a sewing machine at a discount of 15% and sells it for Rs 1955. Thus, he makes a profit of 15%. The discount is :

5. After allowing a discount of 10% on M.P., a shopkeeper charges Rs 540 for a watch. Had he not allowed any discount, he would have made a profit of 20%. What was the C.P. of the watch ?

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

7. Pankaj bought a bag with 20% discount on the original price. He got a profit of Rs 50,by selling it at a price 150% of the price at which he bought. What was the original price of the bag ?

8. 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 ?

9. 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:

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