Its in A.Pdanjuma wrote:What is the 51st term in the sequence 5,9,13, 17, 21, 25.....
a.205 b.203 c. 207 d. 209 e.211
nth term= a+(n-1)d
=>5+(51-1)4=>205
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Arithmetic
Source: Beat The GMAT — Problem Solving |
nth term= a+(n-1)d
=>5+(51-1)4=>205
the sequence shows that every term is result of nd+1
where n= #th of element
d= difference between two elements
for e.g... what is the 4th element, then 4(n) * 4(d) + 1 = 17
same way 51 element is 51*4+1 = 205
where n= #th of element
d= difference between two elements
for e.g... what is the 4th element, then 4(n) * 4(d) + 1 = 17
same way 51 element is 51*4+1 = 205
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Saurabh Mahajan
I can understand you not winning,but i will not forgive you for not trying.
Saurabh Mahajan
I can understand you not winning,but i will not forgive you for not trying.
