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 exactly divides the sum of two numbers, it must exactly divide the numbers separately.
Use the same rule to fill the hexagons below.
Now you also make your own magic hexagons.
Are they equal?
Now you try and change these numbers into special numbers —
132
The difference of a two-digit number and the number obtained by reversing its digits is always divisible by ______.
If 
then B = ______.
A four-digit number abcd is divisible by 11, if d + b = ______ or ______.
Number 7N + 1 will leave remainder 1 when divided by 7.
Find the value of k where 31k2 is divisible by 6.
