EASY
CAT
IMPORTANT
Earn 100

The sum of an infinite geometric series is 4 and the sum of the cubes of the terms of the same GP is 192. The common ratio of the original geometric series is

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Important Questions on X+2 Maths

EASY
CAT
IMPORTANT
Quantitative Aptitude for the CAT>Chapter 3 - X+2 Maths>Practice Exercises>Q 9
The 10th common term between the series 3 + 7 + 11 + .. . and 1 + 6 + 11 + ... is:
EASY
CAT
IMPORTANT
Quantitative Aptitude for the CAT>Chapter 3 - X+2 Maths>Practice Exercises>Q 10
If a, b, c, and d are four numbers such that the first three are in an AP, while the last three are in a HP, then:
EASY
CAT
IMPORTANT
Quantitative Aptitude for the CAT>Chapter 3 - X+2 Maths>Practice Exercises>Q 11
If a, b, c, and d are positive real numbers such that a, b, c, and d form an increasing arithmetic sequence and a, b, and d form a geometric sequence, then ad is:
EASY
CAT
IMPORTANT
Quantitative Aptitude for the CAT>Chapter 3 - X+2 Maths>Practice Exercises>Q 12
In a G.P. of even number of terms, the sum of all terms is five times the sum of the odd terms. The common ratio of the G.P. is
MEDIUM
CAT
IMPORTANT
Quantitative Aptitude for the CAT>Chapter 3 - X+2 Maths>Practice Exercises>Q 13
If a, b, c are in A.P . then a+1bc, b+1ca, c+1ab are in:
EASY
CAT
IMPORTANT
Quantitative Aptitude for the CAT>Chapter 3 - X+2 Maths>Practice Exercises>Q 14
The ratio of HM and GM for two positive numbers is 4:5. What is the ratio of the numbers?
EASY
CAT
IMPORTANT
Quantitative Aptitude for the CAT>Chapter 3 - X+2 Maths>Practice Exercises>Q 15
The arithmetic mean of the nine numbers in the set {9,99,999,9999,…,999999999} is a 9-digit number M all of whose digits are distinct. The number M does not contain the digit:
EASY
CAT
IMPORTANT
Quantitative Aptitude for the CAT>Chapter 3 - X+2 Maths>Practice Exercises>Q 16
The 288th term of the series a, b, b, c, c, c, d, d, d, d, e, e, e, e, e, . . . is: