Question

Q. The speed of three cars are in the ratio 22:57:64. The ratio between the times taken by these cars if the distance travelled by them is in the ratio 3:5:2 is:

• A. 2736:1760:627
• B. 66:285:128
• C. 110:171:480
• D. 7:11:32

Answer 1

The correct option is A 2736:1760:627

Time $=\frac{\text{Di stance}}{\text{Speed}}$
ratio of time
$=\frac{3}{22}:\frac{5}{57}:\frac{2}{64}=3\times 57\times 64:5\times 22\times 64:2\times 22\times 57=10944:7040:2508=2736:1760:627$