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Score 1 2 3 4 5 No. of students 3 6 4 7 5 The mode of the distribution is 3.

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The S.D of 7 scores 1, 2, 3, 4, 5, 6, 7, is

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UNITED BOOK HOUSE-QUESTION PAPER 2018-Exercise
  1. The simplest value of (cos 53^@)/(sin 37^@) is

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  2. If the radius of a sphere is twice that of 1 st sphere then the volume...

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  3. Score 1 2 3 4 5 No. of students 3 6 ...

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

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  5. A and B start a business with ₨. 15,000 and ₨. 45,000 respectively. Af...

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  6. If 2x + 1/x = 2, then find the value of (x)/(2x^2+x+1).

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  7. If the roots of a quadratic equation be 2 and -3, then write the equat...

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  8. The line parallel to BC of triangleABC meets AB and AC at P and Q resp...

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  9. The radius of a circle with centre O is 5cm. P is a point at a distanc...

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  10. The two chords AB and CD of a circle are at equal distance from the ce...

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  11. If tan theta + cot theta = 2, then find the value of tan^7theta + cot^...

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  12. If the ratio of length of shadow of a tower and height of the tower is...

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  13. The volumes of two right circular cylinders are same. The ratio of the...

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

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  15. The mean of a frequency distribution is 8.1, if fixi = 132 + 5K and f...

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  16. Aminur has taken a loan of ₨. 64,000 from a bank. If the rate of inter...

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  17. A, B and C start a business with the capical of ₨. 6,000, ₨. 8,000 and...

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  18. Answer any One question : Solve : ((x+4)/(x-4))^2 - 5((x+4)/(x-4)) + ...

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  19. The digit in the unit's place of a two figited number is 6 more than t...

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  20. Answer any One question : Find the simplest value of : sqrt7(sqrt5 - ...

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