Question : The time taken to travel the same distance by three cars is in the ratio of 12:15:10. What is the ratio of the speeds of the three cars?

Option 1: 4 : 5 : 6

Option 2: 4 : 6 : 5

Option 3: 5 : 4 : 6

Option 4: 5 : 6 : 4

Question : Raman, Manan, and Kamal are partners and invest in a business such that Raman invests $\frac{2}{5}$th of the total and Manan invests $\frac{3}{8}$th of the total. What is the ratio of profits of Raman, Manan and Kamal, respectively?

Option 1: 16 : 15 : 9

Option 2: 16 : 15 : 31

Option 3: 2 : 3 : 5

Option 4: 15 : 16 : 9

Question : The speeds of two bodies are in the ratio 2 : 3. If the difference in the time taken to cover 50 m is 10 sec, then find the difference in their speeds.

Option 1: $\frac{8}{9} \mathrm{~m} / \mathrm{sec}$

Option 2: $\frac{5}{6} \mathrm{~m} / \mathrm{sec}$

Option 3: $\frac{6}{5} \mathrm{~m} / \mathrm{sec}$

Option 4: $\frac{7}{5} \mathrm{~m} / \mathrm{sec}$

Question : The speed of a boat in still water is 20 km/hr, while the river is flowing at a speed of 8 km/hr and the time taken to cover a certain distance upstream is 6 hr more than the time taken to cover the same distance downstream. Find the distance.

Option 1: 120 km

Option 2: 336 km

Option 3: 126 km

Option 4: 125 km

Question : The areas of the two triangles are in the ratio 4 : 3 and their heights are in the ratio 6 : 5. Find the ratio of their bases.

Option 1: 5 : 6

Option 2: 10 : 9

Option 3: 6 : 5

Option 4: 9 : 10