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Q1
:
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.
A
220 km
B
224 km
C
230 km
D
234 km
Solution
ANS:
B
- 224 km
(1/2)
x
+
(1/2)
x
= 10
21
24
x
+
x
= 20
21
24
15
x
= 168 x 20
x
=
168 x 20
= 224 km.
15
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