Question
Draw an obtuse angled ∆STV. Draw its medians and show the centroid.
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If $\text{x}−\frac{1}{\text{x}}=3,$ find the values of $\text{x}^2+\frac{1}{\text{x}^2} $and $\text{x}^4+\frac{1}{\text{x}^4}.$
→Draw a pie-diagram for the following data of expenditure pattern in a family:
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Items
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Food
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Clothing
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Rent
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Education
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Unforeseen events
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Midicine
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Expenditure (in percent)
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40%
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20%
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10%
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10%
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15%
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5%
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The weekly wages (in Rs.) of 30 workers in a factory are given:
830, 835, 890, 810, 835, 836, 869, 845, 898, 890, 820, 860, 832, 833, 855, 845, 804, 808, 812, 840, 885, 835, 835, 836, 878, 840, 868, 890, 806, 840
Mark a frequency table with intervals as 800-810, 810-820 and so on, using tally marks. Also, draw a histogram and answer the following questions:
830, 835, 890, 810, 835, 836, 869, 845, 898, 890, 820, 860, 832, 833, 855, 845, 804, 808, 812, 840, 885, 835, 835, 836, 878, 840, 868, 890, 806, 840
Mark a frequency table with intervals as 800-810, 810-820 and so on, using tally marks. Also, draw a histogram and answer the following questions:
- Which group has the maximum number of workers?
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A rectangular grassy plot is 112m long and 78m broad. It has a gravel path 2.5m wide all around it on the side. Find the area of the path and the cost of constructing it at Rs. 4.50 per square metre.
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Find the angles marked with a question mark shown in the figure.
Construct a quadrilateral ABCD in which BC = 7.5cm, AC = AD = 6cm, CD = 5cm and BD = 10cm.
Following data gives the break up of the cost of production of a book:
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Printing
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Paper
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Binding charges
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Advertisement
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Royalty
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Miscellaneous
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30%
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15%
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15%
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20%
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10%
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15%
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