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5. A car moves with a speed of 30 km/h for half an hour, 25 km/h for one hour and 40 km/h for two hours. Calculate the average speed of the car.​

Answer»

[ ᴀᴠᴇʀᴀɢᴇ sᴘᴇᴇᴅ = ᴛᴏᴛᴀʟ ᴅɪsᴛᴀɴᴄᴇ ᴛʀᴀᴠᴇʟʟᴇᴅ / ᴛᴏᴛᴀʟ ᴛɪᴍᴇ ᴛᴀᴋᴇɴ]ᴀᴠᴇʀᴀɢᴇ sᴘᴇᴇᴅ = 30ᴋᴍ + 25ᴋᴍ + 40ᴋᴍ / 1 /2ʜʀ + 1ʜʀ + 2ʜʀ = 95ᴋᴍ / 2+2+4/2ʜʀ = 190ᴋᴍ/8ʜʀ = 23.75ᴋᴍ/ʜʀʜᴏᴘᴇ Ɪᴛ ʜᴇʟᴘS



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