What will be the number in the blank box? 1 3 2 14 4 6 5 77 7 9 8

NTSE Stage 2 MAT 2017 Question Paper

Question : 31 of 100

Marks: +1, -0

What will be the number in the blank box?

1	3
2	14

4	6
5	77

7	9
8

Solution:

From the given question

1^2+2^2+3^2=1+4+9=14

4^2+5^2+6^2=16+25+36=77

∴

7^2+8^2+9^2=19+64+81=194

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