Subject
Bank Exam
Topic
Islami Bank Bangladesh Ltd. PO 2017
A wheel that has 6 cogs is meshed with a wheel of 14 cogs. When the smaller wheel has made 21 revolutions, the number of revolutions made by the larger wheel is -
A wheel that has 6 cogs is meshed with a wheel of 14 cogs. When the smaller wheel has made 21 revolutions, the number of revolutions made by the larger wheel is -
ক)
4খ)
9গ)
12ঘ)
49ঙ)
NoneExplanation
Solution: প্রশ্নে বলা হচ্ছে যে, বড় চাকার 14 টি আর ছোট চাকার 6 টি Cogs রয়েছে । ফলে ছোট চাকাটি 21 বার ঘুরলে বড় চাকাটি কয়বার ঘুরবে ? মনে করি, বড় চাকাটি x বার ঘুরবে । উল্লেখ্য, চাকার আকার যত বড় হবে চাকাটি মোট তত সংখ্যক কম বার ঘুরবে । প্রশ্নমতে, বড় চাকার Distance = ছোট চাকার Distance => বড় চাকার Cogs Number of Revolutions = ছোট চাকার Cogs Number of Revolutions => 14 x = 6 21 => x = x = 9Related questions
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