+ x y z
4 1 -5 m
e 7 n 10
f 2 -4 5
In the addition table shown above, what is the value of m + n =?
A. -19
B. 4
C. 5
D. 6
E. 22
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In the addition table shown above, what is the value of m +
This topic has expert replies
The sum of some value from the first row and and some value from the first column is given in the intersection box of these values.
So:
x+4=1 --> x=-3;
y+4=-5 --> y=-9;
x+e=-3+e=7 --> e=10;
y+e=-9+10=n --> n=1;
z+e=z+10=10 --> z=0;
z+4=0+4=m --> m=4;
m+n=4+1=5m+n=4+1=5.
Answer: C.
So:
x+4=1 --> x=-3;
y+4=-5 --> y=-9;
x+e=-3+e=7 --> e=10;
y+e=-9+10=n --> n=1;
z+e=z+10=10 --> z=0;
z+4=0+4=m --> m=4;
m+n=4+1=5m+n=4+1=5.
Answer: C.
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We need to find the value of m + n. Observe that according to the table, 4 + z = m and e + y = n; so we actually need to determine the value of 4 + z + e + y. Let us re-write this summation as 4 + y + e + z. Now, referring to the table, we observe that 4 + y = -5 and e + z = 10. So, m + n = 4 + y + e + z = -5 + 10 = 5.rajeet123 wrote:+ x y z
4 1 -5 m
e 7 n 10
f 2 -4 5
In the addition table shown above, what is the value of m + n =?
A. -19
B. 4
C. 5
D. 6
E. 22
Answer: C
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