How many seconds will a boy take to run one complete round around a square field of side 38 metres, if he runs at a speed of 6 km/h?
A50.1
B91.2
C61.2
D71.2
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Kavya has to reach Bhopal which is 1011 km away in 19 hours. His starting speed for 7
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ഒരാൾ A യിൽ നിന്ന് B യിലേക്ക് 20 km/hr വേഗത്തിലും, B യിൽ നിന്ന് A യിലേക്ക് 30km/hr വേഗത്തിലും സഞ്ചരിച്ചാൽ അയാളുടെ ശരാശരി വേഗം എത്ര ?
A cyclist, after cycling a distance of 70 km on the second day, finds that the ratio of distances covered by him on the first two days is 4 : 5. If he travels a distance of 42 km. on the third day, then the ratio of distances travelled on the third day and the first day is:
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