Quantitative Aptitude for the CAT>Chapter 3 - X+2 Maths>Practice Exercises>Q 13

EASY

CAT

IMPORTANT

Earn 100

If the sum of the reciprocals of the first seven terms of a harmonic progression is $70$ , find the fourth term of the $HP$ .

50% studentsanswered this correctly

Important Questions on X+2 Maths

EASY

CAT

IMPORTANT

Quantitative Aptitude for the CAT>Chapter 3 - X+2 Maths>Practice Exercises>Q 14

If the

m^{th}

term of a

HP

is

n

and the

n^{th}

term is

m

, what is the value of the

(m + n) th

term?

EASY

CAT

IMPORTANT

Quantitative Aptitude for the CAT>Chapter 3 - X+2 Maths>Practice Exercises>Q 15

If

\frac{(x^{n + 1} + y^{n + 1})}{(x^{n} + y^{n})}

is the harmonic mean of

x

and

y

, find the value of

n

EASY

CAT

IMPORTANT

Quantitative Aptitude for the CAT>Chapter 3 - X+2 Maths>Practice Exercises>Q 16

A series is simultaneously in an

AP

and a

HP

. Which of the following is true?

EASY

CAT

IMPORTANT

Quantitative Aptitude for the CAT>Chapter 3 - X+2 Maths>Practice Exercises>Q 17

A series is simultaneously in an

AP

and a

HP

. Which of the following is true?

EASY

CAT

IMPORTANT

Quantitative Aptitude for the CAT>Chapter 3 - X+2 Maths>Practice Exercises>Q 4

If

a, b

, and

c

are in a GP, then

a + b, 2 b, b + c

are in:

EASY

CAT

IMPORTANT

Quantitative Aptitude for the CAT>Chapter 3 - X+2 Maths>Practice Exercises>Q 5

If

a, b

, and

c

are in an AP, then

\frac{a}{bc}, \frac{1}{c}, \frac{2}{b}

are in:

HARD

CAT

IMPORTANT

Quantitative Aptitude for the CAT>Chapter 3 - X+2 Maths>Practice Exercises>Q 6

In the sequence

1, 2, 2, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, . . .,

where

n

consecutive terms have the value

n

, the

1025^{t h}

term is

HARD

CAT

IMPORTANT

Quantitative Aptitude for the CAT>Chapter 3 - X+2 Maths>Practice Exercises>Q 7

If the

p^{th}, q^{th} & r^{th}

terms of an A.P. are in G.P., then find the common ratio of the G.P.