Questions by Arun

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Below are the drawings of cross sections of two different pipes used to fill swimming pools. Figure A is a combination of 2 pipes each having a radius of 8 cm. Figure B is a pipe having a radius of 15 cm. If the force of the flow of water coming out of the pipes is the same in both the cases, which will fill the swimming pool faster?

asked Jan 18, 2022 in 8th-maths

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The capacity of a closed cylindrical vessel of height 1 m is 15.4 L. How many square metres of metal sheet would be needed to make

asked Jan 18, 2022 in 8th-maths

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A rectangular examination hall having seats for 500 candidates has to be built so as to allow 4 cubic metres of air and 0.5 square metres of floor area per candidate. If the length of hall be 25 m, find the height and breadth of the

asked Jan 18, 2022 in 8th-maths

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A double bar graph is useful for the __________ of two sets of data.- Data represented in a circular form is called a _________ chart.- The graph of a linear equation is always a __________ line.- The cartesian system used two axes which are __________ to each

asked Jan 18, 2022 in 8th-maths

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A point which lies on both the axis is

asked Jan 18, 2022 in 8th-maths

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Locate the points P (3,4), Q (1,0), R (0,4), S (4,1) on a graph sheet and write the coordinates of the point of intersection of line segments PQ and

asked Jan 18, 2022 in 8th-maths

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Draw a parallelogram ABCD on a graph paper with the coordinates given in Table I. Use this table to complete Tables II and III to get the coordinates of E, F, G, H and J, K, L, M. Point (x, y) A (1, 1) B (4,4) C (8,4) D (5, 1) Table I Point (0.5x, 0.5y) E (0.5, 0.5) F G H

asked Jan 18, 2022 in 8th-maths

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The following graph shows the number of people present at a certain shop at different times. Observe the graph and answer the following questions. (a) What type of a graph is this?(b) What information does the graph

asked Jan 18, 2022 in 8th-maths

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__________ displays data that changes continuously over periods of

asked Jan 18, 2022 in 8th-maths

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The distance of any point from the y-axis is the __________

asked Jan 18, 2022 in 8th-maths

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The distance of any point from the x -axis is called the

asked Jan 18, 2022 in 8th-maths

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The distance of the point (3, 5) from the y-axis is

asked Jan 18, 2022 in 8th-maths

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Match the coordinates given in Column A with the items mentioned in Column B. Column A Column B (1) (0, 5) (a) y coordinate is 2 × x - coordinate + 1. (2) (2, 3) (b) Coordinates of origin. (3) (4, 8) (c) Only y–coordinate is zero. (4) (3, 7) (d) The distance from x –axis is 5. (5) (0, 0) (e) y coordinate is double of x –coordinate. (6) (5, 0) (f) The distance from y–axis is 2.

asked Jan 18, 2022 in 8th-maths

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The number ab – ba where a and b are digits and a > b is divisible by

asked Jan 18, 2022 in 8th-maths

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Generalised form of a two-digit number xy

asked Jan 18, 2022 in 8th-maths

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A four-digit number 4ab5 is divisible by 55. Then the value of b – a

asked Jan 18, 2022 in 8th-maths

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If 5 `A xx A` = 399, then the value of A

asked Jan 18, 2022 in 8th-maths

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The sum of a two–digit number and the number obtained by reversing the digits is always divisible by

asked Jan 18, 2022 in 8th-maths

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The difference of three-digit number and the number obtained by putting the digits in reverse order is always divisible by 9 and

asked Jan 18, 2022 in 8th-maths

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If then A = ______ and B =

asked Jan 18, 2022 in 8th-maths

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