Ahigh-speed train travels 25 feet in 1/3 second. in 4 seconds, the train will have traveled feet

300 feet

The biggest challenge in this problem is that it includes a fraction.

So, we can make this question easier by figuring out how many feet this train travels in 1 second.

If we know how far it traveled in 1 second, then we can quickly figure out how far it goes in 4 seconds.

Since the train travels 25 feet in 1/3 of a second, then it must travel 3 times that far in 1 second:  

25 feet x 3 = 75

We now know that this train must travel 75 feet in 1 second. Now we can solve for 4 seconds quite simply.

If the train travels 75 feet in 1 second, then how far will it travel in 4 seconds? We need to multiply 75 by 4 to get our

75 x 4 = 300 feet

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.