(c) 7800 (d) 78000 In what time can Sanjana cover a distance of 1400 m, if she drives at a speed of 20 km/hr? (a) 42 minutes (b) 4.2 minutes (c) 425 minutes (d) 420 minutes A man completes 50 km of a journey at 8 km/ and the remaining 30 km of the journey in 3 hou His average speed for the whole journey is 4 b) 7 km/hr
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425($3++3;$8!2(@9$!_;+$(
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