Problems based on Numbers Test 1

Question : 7 of 40

Marks: +1, -0

The following addition is incorrect

\table ,7,4,2,5,8,6; +, 8,2,9,4,3,0 ; = 1,2,1,2,0,1,6

This can be made correct by changing one digit d, wherever it occurs, with another digit e. The value of d + e will be:

Solution:

\table 7,4,2,5,8,6; , +8,2,9,4,3,0 ; ,=1,2,1,2,0,1,6

Value of d + e = 2 + 6 = 8.

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