Question : If the surface area of two spheres is in the ratio 81 : 25, then what is the ratio of their radius?

Option 1: 5 : 8

Option 2: 7 : 9

Option 3: 5 : 7

Option 4: 9 : 5

Question : Two vessels of equal capacity, and both completely filled, contain mixtures of milk and water in the ratio of 5 : 1 and 6 : 5, respectively. Both the mixtures are now mixed thoroughly. What is the ratio of milk to water in the new mixture so obtained?

Option 1: 105 : 67

Option 2: 57 : 41

Option 3: 91 : 41

Option 4: 28 : 43

Question : If the ratio of the volumes of two cylinders is 6 : 5 and the ratio of their heights is 5 : 24, then what is the ratio of their radii?

Option 1: 12 : 7

Option 2: 5 : 6

Option 3: 1 : 2

Option 4: 12 : 5

Question : If the ratio of the volumes of two cylinders is 7 : 5 and the ratio of their heights is 5 : 7, then what is the ratio of their radii?

Option 1: 5 : 7

Option 2: 3 : 4

Option 3: 5 : 9

Option 4: 4 : 5

Question : A and B started a business with Rs. 15000 and Rs. 30000, respectively. If A and B share profit in the ratio of 1 : 5 respectively, then what is the ratio of the time period of investment for A and B respectively?

Option 1: 1 : 2

Option 2: 2 : 5

Option 3: 2 : 3

Option 4: 2 : 7