What was invented by Zacharias Jansen?
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In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.RECIPROCATE
How many triangles are there in the given figure?
If the average age of four children is 12 years and the average age of these children and their fathers is 20 years, what is the age of the father?
Electric tram was invented by?
Uraninite is an ore/mineral of _______.
Diameter of wheel of a cycle is 21 cm. The cyclist takes 45 minutes to reach a destination at a speed of 16.5 km/hr. How many revolutions will the wheel make during the journey?
ABCD is a quadrilateral in which BD and AC are diagonals then