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If the mean of frequency distribution is 10 `sumf_iu_i= 200` then total frequeny is 20.

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UNITED BOOK HOUSE-KANACHI HIGH SCHOOL-EXERCISE
  1. Write True or False If 0^@lethetale90^@ then cos theta> cos^2 theta.

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  2. Write True or False If the length of radius of a cylinder is half th...

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  3. Write True or False If the mean of frequency distribution is 10 sumf...

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  4. If the compound interest of some money for 2 years at the rate of comp...

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  5. In a partnership business Ram and Hori invest Rs 1,200 & Rs 800 respec...

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  6. What should subtracted from each element of 5:7 to make the result 2:3...

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  7. If x prop y, y prop z and z prop x, find the product of three variatio...

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  8. If the length of the diagonals of a rhombus are 24 cm and 10 cm then t...

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  9. Two chords AB and AC of a circle are mutually perpendicular to each ot...

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  10. If r cos theta = 3 and r sin theta = sqrt3 then find the value of r a...

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  11. If the ratio of three consequctive angles is 1:2:3 then find the value...

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  12. In right angled triangle ABC, angleB is right angle. If AB= 8sqrt3cm ...

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  13. If the volume, base area and height of a right circular cone are V cu ...

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  14. If each edge of a cube is increased by 50%, then how much the total su...

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  15. If ui = (xi-25)/5,sumfiui = 20 and sumfi= 100 then find the value of b...

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  16. At the same rate of simple interest in percent per annum, if a princip...

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  17. Pradipbabu and Aminabiib started a business jointly by investing Rs 24...

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  18. Solve: 1/(a+b+x) = 1/a+1/b+1/x,x!=0,-(a+b)

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