A 105 meter rope is cut into three pieces three pieces with each piece twice as long as the previous one. How long is the middle piece?
Solution
Correct Answer: Option D
প্রথম টুকরা x , ২য় টুকরা ২x, ৩য় টুকরা 4x শর্ত মতে , x+2x+4x=105 then, 7x= 105 x=15 মধ্য টুকরা = 15 x 2 = 60
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