If (3+5+7+ u p tont e r m s)/(5+8+11+ u...

If `(3+5+7+ u p tont e r m s)/(5+8+11+ u p to10t e r m s)=7,` then find the value of `ndot`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

SEQUENCES AND SERIES
OBJECTIVE RD SHARMA ENGLISH|Exercise Chapter Test|59 Videos
SEQUENCES AND SERIES
OBJECTIVE RD SHARMA ENGLISH|Exercise Section II - Assertion Reason Type|13 Videos
QUADRATIC EXPRESSIONS AND EQUATIONS
OBJECTIVE RD SHARMA ENGLISH|Exercise Chapter Test|50 Videos
SETS
OBJECTIVE RD SHARMA ENGLISH|Exercise Chapter Test|30 Videos

Similar Questions

Explore conceptually related problems

If (5+9+13+\ ddotto\ n\ t e r m s)/(7+9+11+\ ddotto\ (n+1)t e r m s)=(17)/(16) , then n= (a) 8 (b) 7 (c) 10 (d) 11

If "^9P_5+5*^9P_4=^(10)P_r , find the value of r .

In Figure, O A B C is a square of side 7 cm. If O A P C is a quadrant of a circle with centre O , then find the area of the shaded region. (U s e\ \ pi=22//7)

In Fig. 4.245, R S D B P Q . If C P=P D=11 c m and D R=R A=3c m . Then the values of x and y are respectively (FIGURE) 12 ,\ 10 (b) 14 ,\ 6 (c) 10 ,\ 7 (d) 16 ,\ 8

The mean of 7,5,8,p and 11 is 8. Find the value of p.

If 3s+5t=10 , and 2s-t=7 , what is the value of (1)/(2^(s))+3t ?

If the G.P.s 5 , 10, 20,.... and 1280, 640, 320,.... have their nth terms equal, find the value of ndot

The cost of papering four walls of a room at 70\ p a i s e\ p e r\ s q u a r e\ m e t e r is R s .157.50. The height of the room is 5\ m e t r e sdot Find the length and the breadth of the room if they are in the ratio 4:1

In Figure, S and T are points on the sides P Q and P R respectively of /_\ P Q R such that P T=2c m , T R=4c m and S T is parallel to Q R . Find the ratio of the areas of /_\P S T and /_\P Q R .

The dimension of a rectangular box are in the ratio 2:3:4 and the difference between the cost of covering it with sheet of paper at the rate of R s .4\ a n d\ R s .4.50\ p e r\ s q u a r e\ m e t e r is R s .416. Find the dimensions of the box.

OBJECTIVE RD SHARMA ENGLISH-SEQUENCES AND SERIES-Exercise

If a,b,c are in A.P. as well as in G.P. then
Text Solution
|
The value of 2.bar(357), is
Text Solution
|
If (3+5+7+ u p tont e r m s)/(5+8+11+ u p to10t e r m s)=7, then find...
Text Solution
|
If x,1,z are in AP and x,2,z are in GP, then x,4,z will be in
Text Solution
|
The sum of three numbers in G.P. is 14. If one is added to the first ...
Text Solution
|
about to only mathematics
Text Solution
|
If the sum of first two terms of an infinite G.P is 1 and every term i...
Text Solution
|
If x,y,z are in G.P and a^x=b^y=c^z,then
Text Solution
|
If the sum of an infinite G.P. be 3 and the sum of the squares of its ...
Text Solution
|
If a,b,c,d are in GP and a^x=b^y=c^z=d^u, then x ,y,z,u are in
Text Solution
|
If a,b,c are in HP, then (a)/(b+c),(b)/(c+a),(c )/(a+b) are in
Text Solution
|
The sum of the first n terms of the series 1^2+2xx2^2+3^2+2xx 4^2+5^2+...
Text Solution
|
If x ,y ,a n dz are pth, qth, and rth terms, respectively, of an A.P. ...
Text Solution
|
If x=2+a+a^2+oo,w h e r e|a|<1a n dy=1+b+b^2+oo,w h e r e|b|<1. prove ...
Text Solution
|
a ,b ,c are positive real numbers forming a G.P. ILf a x^2+2b x+c=0a n...
Text Solution
|
If a ,b ,a n dc are in A.P. p ,q ,a n dr are in H.P., and a p ,b q ,a ...
Text Solution
|
Find the sum of integers from 1 to 100 that are divisible by 2 or 5...
Text Solution
|
Find the sum of n terms of the sequence (x+1/x)^2,(x^2+1/(x^2))^2,(x^3...
Text Solution
|
The geometric mean between -9 and -16 is 12 b. -12 c. -13 d. none of t...
Text Solution
|
The sum of n terms of an A.P. is 3n^(2)+5. The number of term which eq...
Text Solution
|