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Question
Find the class mark of class interval \( 100 - 120 \) Write the formula of curved surface area of a cylinder
Find the decimal expansion of \( \frac { 31 } { 16 } \) (Section B) \( 1 + 3 \)
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Solution
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Q1
Write the formula to find to the class-mark of a class interval.
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Q2
A cylinder has a diameter of 20cm. The area of the curved surface is 100cm2 (sq. cm). Find the volume of the cylinder correct to one decimal place.
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Q4
The class mark of the class interval 120−130 is:
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Q5
The class mark of the class 100−120 is
(a) 100
(b) 110
(c) 115
(d) 120