Question

Find the value of A , B , C and give the reason also: ( reason is important ) :

1)B 9
+4 A
= A 5
( it is B or 8)






2) 3 A 0 7
+1 1 B 2
= 4 C 7 C​

Answer 1

Answer:

Example 1: The solution of the equation 3x + 5 = 0 is

(a)

5

3 (b) – 5 (c) - 5

3 (d) 5

Solution : Correct answer is (c).

Example 2: –1 is not a solution of the equation

(a) x + 1 = 0 (b) x – 1 = 2 (c) 2y + 3 =1 (d) 2p + 7 = 5

Solution : Correct answer is (b).

Example 3: Which of the following equations can be formed using

the expression x = 5:

(a) 2x + 3 = 13 (b) 3x + 2 = 13

(c) x – 5 = 1 (d) 4x – 9 =21

Solution: Correct answer is (a).

[Hint: x = 5 on multiplying both sides by 2 gives 2x = 10

which on adding 3 both sides gives 2x + 3 =13]

Answer 2

Answer:

A+8=3, then A has to be 5 because unit digit of the sum has to be 3.

There is a carry-over of 1.

So, 4+9+1=14

A=5,B=4 and C=1