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Radha moves towards South-East a distance of 7 km, then she moves towards West and travels a distance of 14 km. From here she moves towards North-West a distance of 7 km and finally she moves a distance of 4 km towards east. How far is she now from the starting point?
A. 3 km B. 4 km
C. 10 km D. 11 km
Read Solution (Total 2)
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- ----- LOGIC BEHIND -----
The basic logic behind solving this type of Q's are
1. Add all distances which are in same direction, then
2. Subtract it with the opposite one.
----- Answer ----
Total distance towards S-E = 7km
Total distance towards N-W (Opposite to S-E)= 7km
So, subtract S-E dist. with N-W dist.(d1)= 0km
Now Total distance towards W = 14km
Total distance towards E = 4km
So, subtract W to E (d2)= 10km
At last add up all the dist. (i.e d1 and d2) = 10+0 km = 10km (C). - 12 years agoHelpfull: Yes(6) No(0)
- ans C 10 km
- 12 years agoHelpfull: Yes(1) No(0)
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