Question

A + B = 14
+ +
C - D = 10
= 15 =16

FIND VALUE OF A,B,C,D


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Answer 1

Answer:

Answer:

The values are

a=1.5

b=12.5

c=13.5

d=3.5

Step-by-step explanation:

Given:

a+b=14.................(1)

c-d=10..................(2)

a+c=15.................(3)

b+d=16.................(4)

Adding (3) and (4), we get

a+b+c+d=31.........(5)

Using (1) in (5), we get

14+c+d=31

c+d=17................(6)

Adding (2) and (6), we get

c-d=10..................(2)

c+d=17................(6)

2c=27

c=13.5

(6) gives

d=17-13.5

d=3.5

(3) gives

a+13.5=15

a=15-13.5

a=1.5

(1) gives

1.5+b=14

b=14-1.5

b=12.5

Solution:

a=1.5

b=12.5

c=13.5

d=3.5

d=3.5