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126. The average of some natural numbers is 15. If 30 is added in first number and 5 is subtracted from last number then average becomes 17.5. How many natural numbers are there?
30.
20.
15.
10.
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127. Who said "Mathematics is the Science which draws necessary conclusions"?
Hagber.
Locks.
Benjamin Peirce.
None of these.
128. Displays data that changes continuously over periods of time
Bar graph.
Pie graph.
Histogram.
Line graph.
129. Which of the following methods is most suitable for the development of Mathematical skills?
Conducting hands on activities in the class.
Clearing concepts and procedures followed by more and more practice.
By giving only conceptual knowledge.
Describing algorithm only.
130. The main aim of maths teaching in schools is
Mathematisation of thought process of children.
To solve the problems given in the textbook.
To make children fit for employment.
To entertain children through maths.
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