Interger

[jay.jadeja]

please HELP...

There is are 2 questions as follows on intergers ?

1. If n, p, q and r are consecuative intergers, what is their sum ?

2. If 3x + 10 represents an odd interger, which of the following represents the next largest odd interger ?

a). x + 4
b) 3x + 8
c) 3(x + 4 )
d) 3(x+6 )
e). 4(x +1 )

Can somebody kindly explain please.

Thanks in advance.

Jay

[gokul_nair1984]

1. If n, p, q and r are consecuative intergers, what is their sum ?

This cannot be solved. You will need to know atleast one of the values(viz. n,p,q or r).

In terms of n, the sum can be expressed as n+(n+1)+(n+2)+(n+3) because they are consecutive in nature.
=>4n+6=2(2n+3)

2. If 3x + 10 represents an odd interger, which of the following represents the next largest odd interger ?

a). x + 4
b) 3x + 8
c) 3(x + 4 )
d) 3(x+6 )
e). 4(x +1 )

Think of 3x+10 as an odd integer (Let's say 11)
=>3x+10=11. the next larget odd number has to be 13( ie; add 2)
Therefore answer has to be 3x+12=3(x+4)

[StaceyKoprince]

Please read (and follow!) the forum guidelines before posting. This folder is for general questions about study strategy. If you have a question about MGMAT or GMATPrep materials, please post in the appropriate folder. We no longer address questions from other sources.