A worker claims Rs. 15 for each km if he travels by taxi and Rs. 5 for each km if he drives his own car. If in one week he claimed Rs. 500 for travelling 80 km, how many kms did he travel by taxi?
A
10 km
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B
20 km
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C
30 km
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D
40 km
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Solution
The correct option is A10 km Let the worker travel x Km by taxi, then, 15×x+(80−x)×5=500 10x+400=500 x=10 km