Question

39. If each letter in the following calculation represents a single digit from 1 to 9, find the
value of the letters and verify your answer.
(4 marks)
CD
x D
119​

Answer 1

Step-by-step explanation:

(10C+D)×D = 119

10×C×D+D×D=119

D×D 7×7

C=1

CD=17

CD=17D=7

17

×7

_____

119

_____

SO C=1,D= 7