Advertisements
Advertisements
Question
If A3 + 8B = 150, then the value of A + B is ______.
Options
13
12
17
15
Advertisements
Solution
If A3 + 8B = 150, then the value of A + B is 13.
Explanation:
We have,
A3 + 8B = 150
Here, 3 + B = 0,
So 3 + B is a two-digit number whose unit’s digit is zero.
∴ 3 + B = 10
⇒ B = 7
Now, considering ten’s column,
A + 8 + 1 = 15
= A + 9 = 15
⇒ A = 6
Hence, A + B = 6 + 7 = 13
APPEARS IN
RELATED QUESTIONS
Without performing actual addition and division write the quotient when the sum of 69 and 96 is divided by
(i) 11
(ii) 15
Which of the following statement is true?
If a number is divisible by 4, it must be divisible by 8.
Which of the following statement is true?
If a number divides three numbers exactly, it must divide their sum exactly.
If 5A × A = 399, then the value of A is ______.
The sum of a two-digit number and the number obtained by reversing the digits is always divisible by ______.
The difference of a two-digit number and the number obtained by reversing its digits is always divisible by ______.
If 
then A = ______ and B = ______.
A four-digit number abcd is divisible by 4 if ab is divisible by 4.
Number 7N + 1 will leave remainder 1 when divided by 7.
If a number a is divisible by b, then it must be divisible by each factor of b.
