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Which term of the A.P. 3,15,27, 39, ... ...

Which term of the A.P. 3,15,27, 39, ... will be 120 more than its 21st term?

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X BOARD PREVIOUS YEAR PAPER ENGLISH-X Boards-All Questions
  1. Two coins are tossed simultaneously. Find the probability of getting e...

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  2. Find all the zeroes of the polynomial x^3 + 3x^2 - 2x - 6, if two of i...

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  3. Which term of the A.P. 3,15,27, 39, ... will be 120 more than its 21st...

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  4. Delta ABD is a right triangle, right-angled at A and AC | BD. Prove th...

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  5. Find the value of tan 60^@ geometrically

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  6. Is the rational number 441/(2^2 5^7 7^2) a terminating or a non-termin...

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  7. If the points A(4,3)a n dB(x ,5) are on the circle with centre O(2,3),...

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  8. Prove that 2sqrt3 is an irrational number

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  9. (ax)/b-(by)/a=a+b, ax-by=2ab

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  10. If alpha,beta are the zeroes of a polynomial, such that alpha+beta=6 a...

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  11. The sum of first six terms of an arithmetic progression is 42. The ...

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  12. If the sum of first p terms of an AP is ap^2+bp find the common differ...

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  13. Draw a right triangle in which sides (other than hypotenuse) are of le...

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  14. S and T are points on the sides PQ and PR, respectively of Delta PQR,...

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  15. In Figure 3, AD |BC and BD=1/3CD. Prove that 2 CA^2 = 2 AB^2 + BC^2.

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  16. Find the ratio in which the point (2, y) divides the line segment join...

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  17. Find the ratio in which the point (2, y) divides the line segment join...

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  18. In Fig. 2, Delta AHK is similar to Delta ABC. If AK = 10 cm, BC = 3.5 ...

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  19. Find the area of the quadrilateral whose vertices, taken in order, a...

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  20. The area of an equilateral triangle is 49sqrt(3)c m^2 . Taking each an...

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