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If the product of two roots of the equation `x^2-3x+k=10` is -2 then k=

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UNITED BOOK HOUSE-RK MISSION BOYS' HOME HIGH SCHOOL-EXERCISE
  1. If the mean of 6,7,x,8,y,16,16 is 9, then.

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  2. Fill in blanks Pallabi invests Rs 500 for 9 months and Razia invest...

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  3. If the product of two roots of the equation x^2-3x+k=10 is -2 then k=

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  4. If two circle do not intersect or touch each other, then the maximum n...

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  5. Fill in blanks sin 12^@-cos 78^@=.

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  6. Fill in blanks By melting a solid sphere, a right circular cylinder ...

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  7. Fill in blanks If the mean of x1,x2,…,xn is batx, then mean of ax1,a...

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  8. Write True or False if the principal and the rate of simple interest...

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  9. Write True or False Compound ratio of ab:c^2, bc:a^2 and ca: b^2 is ...

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  10. Write True or False For any angle theta,sin theta =4/3 is possible.

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  11. Write True or False If in a circle of radius 10cm length, a chord su...

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  12. Write True or False If two solid hemispheres of same type whose base...

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  13. Write True or False Median of 3,14,18,20,5 is 18.

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  14. The ratio of capitals of three persons is 3:8:5 and the profit of 1st ...

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  15. Calculate the rate of compound interest per annum, so that the amount ...

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  16. If the one root of x^2+bx+12=0 is 2 and roots of x^2+bx+q=0 are eq...

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  17. If x= 3+ 2sqrt2 then find the value of x+1/x.

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  18. In triangle ABC, AB = (2a-1)cm,AC = 2sqrt(2a)cm, BC = (2a+1)cm, find ...

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  19. The lengths of radii of two circles are 8 cm and 3 cm and the distance...

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  20. In this figure, O is the centre and AC is the diameter. If angleAOB= 8...

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