According to the question, if we take a(r163-1)/ r-1 =a(r161-1)/r-1 r163 = r161 r2 =1 r=±1 r = +1, the sum will be undefined. Taking r = -1, T117 = ar117-1 985 = a (-1)116 a=985 S150 =a(1-r")/1-r (r 985(1-(-1)150)/1+1 985(1-1)/2=0 =0
Each question contains a statement followed by Quantity I and II. Read the information clearly and answer your questions accordingly.
Qu...
Find the distance between the points (2, 5) and (7, 1).
Quantity-I: ‘A’ and ‘B’ started a business by investing Rs. ‘x’ and Rs. 4,800, respectively. ‘A’ and ‘B’ invested their sum for 8 ...
A cylinder of radius 12 cm containing water reduces its water level by 1 cm when a fully immersed hemi spherical ball is removed from this cylindrical c...
How many words are formed from the letters of the word CHAMPION when vowels (A, I, O) always are together?
The area of rhombus is 270m² and one of its diagonal is 18 m. Find the length of another diagonal.
Quantity I: A can complete a task in 15 days, while B can do it in 12 days. A worked alone for the first 5 days and then left. B and C together finished...
In a triangle, the inradius is 6 cm, the circumradius is 9 cm, and the area is 54 cm². What is the semiperimeter of the triangle?
A car travels from city A to city B at a speed of 60 miles per hour and returns to city A at a speed of 40 miles per hour. If the total round trip takes...
