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Question

Raju runs 1250 m on Monday and Friday. Other days, he runs 1500 m except for Sunday (he does not run on Sunday). How many kilometres will he run in 3 weeks (first day starting from Monday)?

A
12.5 km
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B
20.5 km
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C
8.5 km
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D
25.5 km
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E
None of these
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Solution

The correct option is D 25.5 km
Here, total metres run by Raju in a week.
Days Monday Tuesday Wednesday
Metres 1250 1500 1500
Thursday Friday Saturday
1500 1250 1500
Total distance covered by him in 1 week
=1250×2+1500×4
2500+6000
=8500 m
Total distance covered by him in 3 weeks
=3×8500=2550m
= 25.5 km

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