NTSE Number Series Questions online Test

Very good Questions.
Could you please give explanations to Q2 and Q3?

hi reshmi
in Q2 the diff.is like 20*1,then 20*2,then 20 *3, 20*4 finally 20*5.

question 3 Solution:
see, 2 can be written as 1 square plus 1 cube.
likewise, 12 can be written as 2 square plus 2 cube
and for 80, It can be written as 4 square plus 4 cube.
1452 can be written as 11 square plus 11 cube.

This is a hint.
If you still didn't understand, let me know.
Best Of Luck

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vry nice

It would be better if you give an explanation to these
type of questions

can u tell Q4 and Q5 answers