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All posts related to Others

Jayatishree Pandey
Shared from Sequence and Series - 1 on May 09, 2014 1:52 PM

An AP, a GP and an HP have the same first and last terms and the same number of terms (an odd number). The middle terms of the three series are in a/an

 
AP
GP
HP
None of these
Please type your answer before submitting.

Oh god.... i thought this chapter was suppose to be fun...............

Kalla sai chandra kumari
Shared from Sequence and Series - 1 on Apr 12, 2014 7:10 PM

If A1 and A2 are two AMs (arithmetic means), G1 and G2 are two GMs (geometric means) and H1 and H2 are two HMs (harmonic means) of two numbers, then A 1 + A 2 H 1 + H 2 is equal to

 
H 1 H 2 G 1 G 2
G 1 G 2 H 1 H 2
H 1 H 2 A 1 A 2
G 1 G 2 A 1 A 2
Please type your answer before submitting.

Fivucic8vofyjgu

Ayesha
Shared from Sequence and Series - 1 on Dec 18, 2010 9:16 AM

The sum of n terms of the series 1 1 2 3 4 + 1 2 3 4 5 + 1 3 4 5 6 + is

 
1 3 ( n + 1 ) ( n + 2 ) ( n + 3 )
1 6 ( n + 2 ) ( n + 3 ) ( n + 4 )
15 4 n ( n + 1 ) ( n + 5 )
None of these
Please type your answer before submitting.

Sanjay maurya

Trishant Sahu
Shared from Sequence and Series - 1 on Sep 19, 2010 10:10 AM

The sum of 2n terms of the series 12 - 22 + 32 - 42 + 52 - 62 +.......... is

 
-2n(4n + 1)
n ( n + 1 ) 2
- n(n + 1)
n2
Please type your answer before submitting.

(1-2)(1 2) (3-4)(3 4)..............nterms.i.e-1*(1 2 3 ...nterms) #ans=-(n)(n 1)/2

Subhasish Mitra
Shared from Vocabulary Test 21 on Sep 07, 2010 3:11 PM

Complete the word:

_ _ _U _ E _ _U _ _ _ _ _

HINT: These people with newly acquired riches do not have the tastes that go along with such wealth.

Please type your answer before submitting.

Clue "E" is wrongly placed.