Question 9
Find the values of the letters in the following and give reasons for the steps involved.
$2 A B$
$+ A B 1 - ----------- -$
$B 18 - ------- -$

Open in App

Solution

Unit place of B+1 is 8 So B=7
On putting B =7,
$\Rightarrow$ 7 + 1 =8
Now unit digit of A+B=1 and B=7 So A=4
Now A = 4, then 4 + 7 =11
Putting 1 at tens place and carry over 1, we get
2 + 4 + 1 =7
Hence, A = 4 and B =7

Suggest Corrections

Similar questions

Question 3
Find the values of the letters in the following and give reasons for the steps involved.
$1 A$
$\times A - ---- -$
$9 A - --- -$

Q. Find the values of the letters in the following and give reasons for the steps involved.

2 A B + A B 1 - ----------- - B 18 - ----------- -

Find the values of the letters.

2 A B

+ A B 1 - --- -

B 18 - --- -

Question 7
Find the values of the letters in the following and give reasons for the steps involved.
$A B$
$\times 6 - ------ -$
$B B B - ------ -$

Question 10
Find the values of the letters in the following and give reasons for the steps involved.
$12 A$
$+ 6 A B - ----------- -$
$A 09 - -------- -$

Join BYJU'S Learning Program

Explore more

Letters for Digits

Standard VIII Mathematics

Join BYJU'S Learning Program

Question 9 Find the values of the letters in the following and give reasons for the steps involved. 2 A B + A B 1––––––––––––– B 1 8–––––––––

Unit place of B+1 is 8 So B=7 On putting B =7, ⇒ 7 + 1 =8 Now unit digit of A+B=1 and B=7 So A=4 Now A = 4, then 4 + 7 =11 Putting 1 at tens place and carry over 1, we get 2 + 4 + 1 =7 Hence, A = 4 and B =7

Question 9
Find the values of the letters in the following and give reasons for the steps involved.
$2 A B$
$+ A B 1 - ----------- -$
$B 18 - ------- -$

Unit place of B+1 is 8 So B=7
On putting B =7,
$\Rightarrow$ 7 + 1 =8
Now unit digit of A+B=1 and B=7 So A=4
Now A = 4, then 4 + 7 =11
Putting 1 at tens place and carry over 1, we get
2 + 4 + 1 =7
Hence, A = 4 and B =7