A complete a journey in 10 hours- He travels first half of the journey the rate of 21 km-hr and second half the rate of 24 km-hr- Find the total journey in km-220 km224 km234 km230 km

Question

Toppr Admin · Accepted Answer

-1-2-x21-1-2-x24-10-x21D2-x21-x24-20-x21D2-15x-168-xD7-20-x21D2-x-168-xD7-2015-224km-

A man complete a journey in 10 hours. He travels first half of the journey at the rate of 21 km/hr and second half at the rate of 24 km/hr. Find the total journey in km.
220 km
224 km
234 km
230 km

$\frac{(1 / 2) x}{21} + \frac{(1 / 2) x}{24} = 10$
$\Rightarrow \frac{x}{21} + \frac{x}{24} = 20$
$\Rightarrow 15 x = 168 \times 20$
$\Rightarrow x = (\frac{168 \times 20}{15}) = 224$ km.

A man complete a journey in 10 hours. He travels first half of the journey at the rate of 21 km/hr and second half at the rate of 24 km/hr. Find the total journey in km.220 km224 km234 km230 km

(1/2)x21+(1/2)x24=10⇒x21+x24=20⇒15x=168×20⇒x=(168×2015)=224km.

A man complete a journey in 10 hours. He travels first half of the journey at the rate of 21 km/hr and second half at the rate of 24 km/hr. Find the total journey in km.
220 km
224 km
234 km
230 km

$\frac{(1 / 2) x}{21} + \frac{(1 / 2) x}{24} = 10$
$\Rightarrow \frac{x}{21} + \frac{x}{24} = 20$
$\Rightarrow 15 x = 168 \times 20$
$\Rightarrow x = (\frac{168 \times 20}{15}) = 224$ km.