Question

Solve this puzzle in minute

Answer 1

GIVEN :

A + B = 8 -----(1)

A × C = 21 -----(2)

B - D = 5 -----(3)

C × D = 9 -----(4)

TO FIND :

The value of A, B, C, D.

SOLUTION :

A = 8 - B

(8-B) × C = 21

8C - BC = 21 -------(5)

D = B - 5

C × (B-5) = 9

BC - 5C = 9 -------(6)

Now add equation (5) and (6)

8C - BC + BC - 5C = 21 + 9

3C = 30

C = 10

A = $\frac{21}{10}$ = 2.1

B = 8 - 2.1

B = 5.9

D = 5.9 - 5

D = 0.9

Therefore,

2.1   +  5.9 =  8

×          -

10  ×  0.9   =  9

||         ||

21        5

Answer 2

Answer:

Step-by-step explanation:

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