Question

a) A car travels 310 km in 5 hours with a uniform speed
i) What distance will the car travel in 7 hours?
ii) How long will it take to travel 682 km?​

Answer 1

Answer:

In 5 hours car travels =310 km

In 1 hour car travels =62 km

i)In 7 hours car travels =434 km

ii)car travels 434 km in =7 hours

car travels 1 km in =7/434 hours

car travels 682 km in= 7/434 × 682 hours

=11 hours

Answer 2

Answer:

(i) 434 km

(ii) 11 hours

Step-by-step explanation:

(i)

310km = 5 hours

x km = 7 hours

FORMULA = $\frac{x}{y} = K$

$\frac{310}{5} = \frac{x}{7} \\\\ 5x = 310 X 7\\5x = 2170\\\\x = \frac{2170}{5} \\x = 434$

x = 434

Therefore, we can travel 434km in 7 hours.

________________________________________

(ii)

310km = 5 hours

683km = x hours

FORMULA = $\frac{x}{y} = K$

$\frac{310}{5} = \frac{682}{x} \\\\310x = 5 X 682\\310x = 3410\\\\x = \frac{3410}{310} \a\\\\x = 11$

x = 11

Therefore, It will take 11 hours to travel 682 km.