Join ExamsbookAnswer : 3. "15 km"
Indu covers the distance of 8 km in the West, 6 km in the North, 4 km in the West and then 3 km in the North respectively to reach the dance club from her home. How far is the club from Indu’s home?5
Q: Indu covers the distance of 8 km in the West, 6 km in the North, 4 km in the West and then 3 km in the North respectively to reach the dance club from her home. How far is the club from Indu’s home?
- 16 kmfalse
- 24 kmfalse
- 315 kmtrue
- 47 kmfalse
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Answer : 3. "15 km"
Explanation :
In this Question OB is distance from home to Dance club that we use OA2=OC2+AC2=82+62=64+36=100 then OA=10
Hence AB2=AD2+BD2=42+32=16+9=25 then AB=5 so that total distance from home to dance club is OB=AO+AB=10+5=15
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Since Nithya and Suganya exchange places, so Rita’s new position is the same as Monika’s earlier position. This position is 17th from the right and 10th from the left. Therefore Number of girls in the row = (16 + 1 + 9) = 26.
