"Question 5 Find the values of the letter in the following and give reasons for the steps involved.
A B
x 3
__________
C A B
__________
Class 8 Playing with Numbers Page 256"
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Numbers can be written in general form. Hence, a two digit number ab will be written as ab = 10a + b.
The general form of numbers is helpful in solving puzzles or number games.
Rules to be followed while solving the puzzles:. Each letter in the puzzle must stand for just one digit. Each digit must be represented by just one letter. 2. The first digit of a number cannot be zero.
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Solution
Put B = 0,
we get 0 × 3 = 0.
And A = 5, then 5 ×3 = 15
A = 5 & C = 1
Hence , A = 5, B = 0 & C = 1
x 3
__________
C A B
__________
5 0
x 3
__________
1 5 0
__________
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Hope this will help you..
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