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If in an AP a=15, d=-3 and an=0. Then fi...

If in an AP a=15, d=-3 and `a_n=0`. Then find the value of n.

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X BOARD PREVIOUS YEAR PAPER ENGLISH-X Boards-All Questions
  1. The midpoint of the line segment joining A(29,4) and B(-2,3b) is C(2a+...

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  2. If Sn the sum of first n terms of an AP is given by 2n^2+n, then find ...

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  3. If in an AP a=15, d=-3 and an=0. Then find the value of n.

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  4. Point P divides the line segment joining the points A(2,1) and B(5,-8)...

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  5. A part of monthly hostel charges is fixed and the remaining depends on...

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  6. For what value of P, points (2,1),(P, -1) and (-1,3) are collinear

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  7. A juice seller was serving his customers using glasses. The inner d...

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  8. In a triangle ABC, B=90^@ and D is the mid-oint of BC then prove that ...

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  9. If sinx+cosy=1 , x=30^0 and y is an acute angle. Find the value of y

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  10. A cylindrical bucket, 32 cm high and with radius of base 18 cm, is ...

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  11. Find the value of (cos48^@-sin42^@)

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  12. A train travels 360 km at a uniform speed. If the speed had been 5k...

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  13. In figure, three sectors of a circle of radius 7 cm, making angles of ...

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  14. The area of two similar traingles are 25 sq cm and 121 sq cm. Find the...

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  15. Solve 1/(a+b+x)=1/a+1/b+1/x,a+b !=0

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  16. Show that any positive odd integer is of the form 6q+1 or 6q+3 or 6q+...

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  17. The sum of first p- terms terms of an A.P. is q and the sum of first q...

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  18. Prove that the parallelogram circumscribing a circle is a Rhombus.

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  19. Find the HCF of 612 and 1314 using prime factorisation.

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  20. Construct an isosceles triangle whose base is 8 cm and altitude 4 cm a...

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