Home
Class 11
MATHS
The sum of some terms of a G.P. is 315 w...

The sum of some terms of `a` G.P. is 315 whose first term and the common ratio are and 2, respectively. Find the last term and the number of terms.

Text Solution

Verified by Experts

The correct Answer is:
160;3
Promotional Banner

Topper's Solved these Questions

  • SEQUENCES AND SERIES

    MODERN PUBLICATION|Exercise EXERCISE 9 (i) LATQ|12 Videos

  • SEQUENCES AND SERIES

    MODERN PUBLICATION|Exercise EXERCISE 9 (j) LATQ|11 Videos

  • SEQUENCES AND SERIES

    MODERN PUBLICATION|Exercise EXERCISE 9 (h) SATQ|5 Videos

  • RELATIONS AND FUNCTIONS

    MODERN PUBLICATION|Exercise Chapter Test|11 Videos

  • SETS

    MODERN PUBLICATION|Exercise CHAPTER TEST 1|12 Videos

Similar Questions

Explore conceptually related problems

The sum of some terms of G.P.is 315 whose first term and the common ratio are 5 and 2, respectively.Find the last term and the number of terms.

The first term of an A.P. is 5, the common difference is 3 and the last term is 80; find the number of terms.

The fourth, seventh and last terms of a GP are 10, 80 and 2560 respectively. Find the first term and the number of terms in the GP.

Find the 12th term of a G.P. whose 8th term is 192 and the common ratio is 2.

The fourth,seventh,and the last term of a G.P. are 10,80 and 2560 ,respectively.Find the first term and the number of terms in G.P.

The sum of first 6 terms of a G.P. is nine times the sum of the first 3 terms. Find the common ratio.

The sum of first 12 terms of a G.P. is five times the sum of the first 6 terms. Find the common ratio.

The fourth,seventh and the last term of a G.P. are 10,80 and 2560 respectively.Find the first term and the number in the G.P.