Question

If The ratio sutdents to teachers on a commet of 21 members is 8 to 6, how many members of the commet studnets?the speed of two trians is 7:8 .if the second trians runs 440 kms in 4 horus ,then the speed of the first trian in

Answer 1

Answer:

385km/hr

Step-by-step explanation:

$\frac{7}{8} = \frac{?}{440}$

to find that we have to divide 440 by 8

$\frac{440}{8} = 55$

then we have to multiply 55 by 7

$55 \times 7 = 385$

therefore the answer is 385km per 4 hours