In a walking competition three persons step off together . Their step measure 85 cm , 90cm, 80 cm respectively. At what distance from the starting point will they again step off together ?
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80= 2 × 2 × 2 × 2 × 5
85 = 5 × 17
90 = 2 × 3 × 3 × 5
ʟᴄᴍ ᴏғ 80,85 90
=2 ×2 × 2 × 2 × 3 × 3 × 5 × 17
= 12240
ᴍɪɴɪᴍᴜᴍ ᴅɪsᴛᴀɴᴄᴇ ᴇᴀᴄʜ sʜᴏᴜʟᴅ ᴡᴀʟᴋ sᴏ ᴛʜᴀᴛ ᴛʜᴇʏ ᴄᴀɴ ᴄᴏᴠᴇʀ ᴛʜᴇ ᴅɪsᴛᴀɴᴄᴇ
= 12240 ᴄᴍ
= 122.4 ᴍ
80= 2 × 2 × 2 × 2 × 5
85 = 5 × 17
90 = 2 × 3 × 3 × 5
ʟᴄᴍ ᴏғ 80,85 90
=2 ×2 × 2 × 2 × 3 × 3 × 5 × 17
= 12240
ᴍɪɴɪᴍᴜᴍ ᴅɪsᴛᴀɴᴄᴇ ᴇᴀᴄʜ sʜᴏᴜʟᴅ ᴡᴀʟᴋ sᴏ ᴛʜᴀᴛ ᴛʜᴇʏ ᴄᴀɴ ᴄᴏᴠᴇʀ ᴛʜᴇ ᴅɪsᴛᴀɴᴄᴇ
= 12240 ᴄᴍ
= 122.4 ᴍ
NidhraNair:
thanks
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