NTSE Stage 2 MAT 2018 Exam Question Paper

Question : 6 of 100

Marks: +1, -0

The number in the place of ‘?’should be

Solution:

Sum of squares of all numbers – sum of numbers

[(3)^{2}+(2)^{2}+(2)^{2}+(4)^{2}]-[3+2+2+4]=22

[(4)^{2}+(3)^{2}+(2)^{2}+(5)^{2}]-[4+3+2+5]=40

[(5)^{2}+(4)^{2}+(3)^{2}+(6)^{2}]-[5+4+3+6]=68

Here, Option 4 is correct.

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