The speeds of seven cars C1, C2, C3, C4, C5, C6 and C7 are compared. All cars have different speeds. The speed of C1 is more than only two cars. The speed of C6 is more than C4 and less than C5. The speeds of C2 and C3 are the highest and the lowest, respectively. The speed of C4 is more than C1. The speed of how many cars is less than C7?

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The speeds of seven cars C1, C2, C3, C4, C5, C6 and C7 are compared. All cars have different speeds.

1. The speed of C1 is more than only two cars.

So, _> _> _> _> C> _> _

2. The speed of C6 is more than C4 and less than C5.

So, C5 > C6 > C4

3. The speeds of C2 and C3 are the highest and the lowest, respectively.

So, C2> _> _> _> C1> _> C3

4. The speed of C4 is more than C1.

So, C4 > C1

Combining all the statements, we get:

So, C2> C5> C6> C4> C1> _> C3

C7, the only car left will occupy the vacant position.

C2 > C5 > C6 > C4 > C1 > C7 > C3

Therefore, the speed of only one car is less than C7.