Arithmometer was invented by
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In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.
A dime a dozen
What was the shape of the galaxy named A1689 B11 that existed 11 billion years ago?
54% of 4000 is
What is the highest common factor of 360 and 450?
In a certain code language, '-' represents '+', '+' represents 'x', 'x' represents '÷' and '÷' represents '-'. Find out the answer to the following question.
2 ÷ 12 - 6 + 20 x 4 = ?
____ is the most electropositive and ___ is the most electronegative element of the third period of modern periodic table.
Which of the following compounds is the strongest acid?