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ব্লটু (Blue tooth) উদ্ভাবন করেন-

সঠিক উত্তর: এরিকসন
১৯৯৪ সালেটেলিকম ভেন্ডার এরিকসন (Ericsson) ব্লুটুথ নামক ওয়ারলেস কমিউনিকেশন প্রটোকল তৈরি করে। ডেনমার্কের রাজা হ্যারল্ড ব্লুটুথ এর নাম অনুসারে প্রযুক্তির নাম রাখা হয় - - সঠিক উত্তর - এরিকসন।

Below is the list of colors nominated as the favorite colors by students of class I. Determine the color which has frequency 9. red, blue, red, yellow, green, yellow, green, yellow, yellow, red, green, red, blue, red, yellow, red, blue, yellow, red, blue, blue, yellow, yellow, green, green

In each of the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if theyseem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements.
Statements:
I. Some cups are plates.
II. All spoons are blue.
III. No plates are spoon.
Conclusions:
I. Some cups are not spoon.
II. Some plates are not blue.
III. Some cups are not blue.
IV. Some blue are not plates.

Statements : All green are blue. All blue are white.

Conclusions :
I. Some blue are green.
II. Some white are green.
III. Some green are not white.
IV. All white are blue.

There are five persons sitting on a bench. Blue eyed lady sitting in the middle is my mother. At the extreme left, the man with grey hair is my maternal uncle. Lady sitting at the extreme right is having a pimple on her nose and is the wife of person who is sitting between blue eyed lady and grey haired man and has a pointed nose. A lady having marks on her face is the younger sister of the blue eyed lady and sitting on the remaining fifth place. The person having a pointed nose is the son of the blue eyed lady. What is the lady having marks on her face to the man sitting at extreme left ?

In a colored picture of blue and yellow color, blue and yellow color is used in the ratio of 4 : 3 respectively. If in the upper half, half blue : yellow is 2 : 3, then in the lower half blue : yellow is =?

পথিকৃৎ সমাজবিজ্ঞানীদের মধ্যে যিনি তিউনিসে জন্মগ্রহণ করেন তিনি সমাজবিজ্ঞানের এমন একটি প্রত্যয় উদ্ভাবন করেন যার অর্থ গোত্র সংহতি। অনুচ্ছেদে উল্লিখিত সমাজবিজ্ঞানীর উক্ত প্রত্যয় ছাড়াও উল্লেখযোগ্য অবদান হলো-

A certain dentist specializes in implanting gold and silver teeth in his patients mouths .He charges $ 650 for a gold tooth an $ 325. for a silver tooth. If his told fees for implanting gold and silver teeth last week were $ 15, 925 in total and he implanted five more gold teeth that silver teeth, how many teeth in total did he implant over the week?

What causes an un-proportionally thin and high tooth in the toe region, and a short and thick tooth at the heel?

The distance measured along the circumference of the pitch circle from a point on one tooth to the same point on the adjacent tooth is called ________________

Force exerted by driving tooth on the driven tooth along the line of pitch point to the point of contact of two teeth is known as