A) 6 km
B) 7 km
C) 8 km
D) 9 km
Correct Answer: A
Solution :
Let distance between home and school = y km Time taken from home to school = x h Time taken from school to home \[=(5-x)\,\text{h}\] For journey from home \[\to \] School \[y=3(x)\] \[y=3x\] ?(i) For journey from school \[\to \] Homes \[y=2\,(5-x)\,km\] \[y=10-2x\] ?(ii) From Eqs. (i) and (ii), we get \[x=2h\] Distance between home \[\to \] School \[\Rightarrow \] \[y=3(2)\,km\] \[\Rightarrow \] \[y=6\,km\]You need to login to perform this action.
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