Question

Marcy cycle at 6km per hour. How long will she take to reach her Aunt's house which is 12km away? If she cycle at a speed of 4km/hr, hiw long would she take

Answer 1

Answer:

Step-by-step explanation:

Answer 2

${\huge{\boxed{\mathcal\pink{{Answer}}}}}$

Marry take 2 hours at the speed of 6km/hr and 3 hours at the speed of 4km/hr.

StepStep-by-step explanation:

${\huge{\boxed{\mathcal{{sloution}}}}}$

●speed and the time take to cover a

distance are in inverse proportion

●Let marry take x hours to cover 12km at

the speed of 6km/hr and y hour to cover

the same distance at 4km/hr

${\huge\mathfrak\red{Speed}}$

6km/h

4 km / h

${\huge\mathfrak\pink{time}} \\ x \: hours \\ y \: hours$

${\huge\mathfrak\orange{distance}} \\ 12km \\ 12km$

${\huge\sf\red{Speed}}x \\ {\huge\mathfrak\blue{time}} = {\huge\sf\purple{distance}}$

$6 \times x = 12 \\ 4xy = 12$

$∴ \: x = \frac{12}{6} \\ ∴ \: y = \frac{12}{4} \\ ∴ \: x = 2 \: ∴y = 3$

Ans:

Marry take 2 hours at the speed of 6km/hr and 3 hours at the speed of 4km/hr.