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Write True or False Mean proportional ...

Write True or False
Mean proportional of `-1/12` and `-1/75` is `+-1/30`.

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UNITED BOOK HOUSE-RAMKRISHNA MMISSION BOYS SCHOOL-EXERCISE
  1. Fill in the blanks If (sumxi)/n= barx then (sum(xi-a))/n-.

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  2. Write True or False At present the population of a city is P and rat...

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  3. Write True or False Mean proportional of -1/12 and -1/75 is +-1/30.

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  4. Write True or False Simplified value of (sec theta+ tan theta)(1-sin...

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  5. Write True or False Two differenct Rhombuses are always similar.

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  6. Write True or False Total surface area of a hemisphere is 36 pisq.m ...

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  7. Write True or False Graph of cumulative frequency is called an ogive...

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  8. The rate of simple interest per annum reduces from 4% to 3 3/4% and fo...

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  9. A and B invest Rs(a+b)^2 and Rs (a^2+b^2) in a business. After 1 year ...

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  10. Product of root of (m-2)x^2-(m-3)x+(m+1)=0 is thrice of their sum . Fi...

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  11. Arrange in descending order: root(9)(7),root(6)(5),root(3)(2).

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  12. The radii of two circles are 8 cm and 6 cm respectively. Find the radi...

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  13. Two circles of radii 9cm and 4cm touch each other externally. Another ...

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  14. O is any point inside the rectangle ABCD. If OB = 6cm, OD = 8cm and OA...

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  15. If x= arcos theta cos alpha,y =br cos theta sin alpha,z = cr sin theta...

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  16. V1,V2,V3 are the volumes of a coe, a hemisphere and a cylinder with eq...

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  17. The volumes of a solid hemisphere is 144Pi cu. Cm, then find the diame...

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  18. Two angles of a triangle are 65^@56'55'' and 64^@3'5'' resp. Find the ...

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  19. Calculate the compound interest and amount on Rs 1600 for 1 1/2 years ...

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  20. Dipu, Rabeya and Megha started a partnership business on 1st January o...

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