COMEDK 2024 Evening Shift | Sequences and Series Question 2 | Mathematics

If two positive numbers are in the ratio $$3+2 \sqrt{2}: 3-2 \sqrt{2}$$, then the ratio between their A.M (arithmetic mean) and G.M (geometric mean) is

$$3: 4$$

$$6: 1$$

$$3: 2$$

$$3: 1$$

COMEDK 2024 Evening Shift

MCQ (Single Correct Answer)

-0

A number consists of three digits in geometric progression. The sum of the right hand and left hand digits exceeds twice the middle digit by 1 and the sum of left hand and middle digits is two third of the sum of the middle and right hand digits. Then the sum of digits of number is

$$\frac{1}{4}$$

469

109

COMEDK 2024 Afternoon Shift

MCQ (Single Correct Answer)

-0

The sum of first three terms of a geometric progression is 16 and the sum of next three terms is 128 . The sum to $$\mathrm{n}$$ terms of the geometric progression is

$$ \frac{8}{3}\left(3^n-1\right) $$

$$ \frac{16}{7}\left(2^n-1\right) $$

$$ \frac{16}{7}\left(3^n-1\right) $$

$$ \frac{8}{3}\left(2^n-1\right) $$

COMEDK 2024 Afternoon Shift

MCQ (Single Correct Answer)

-0

The sum of four numbers in a geometric progression is 60 , and the arithmetic mean of the first and the last number is 18 . Then the numbers are

$$10,8,16,26$$

$$32,16,4,8$$

$$32,16,8,2$$

$$4,8,16,32$$

Previous Next

Questions Asked from MCQ (Single Correct Answer)

COMEDK 2024 Evening Shift (3) COMEDK 2024 Afternoon Shift (3) COMEDK 2024 Morning Shift (3) COMEDK 2023 Morning Shift (3) COMEDK 2023 Evening Shift (2) COMEDK 2022 (3) COMEDK 2021 (2) COMEDK 2020 (1)

COMEDK Subjects