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Byju's Answer

Standard VIII

Mathematics

Letters for Digits

Consider the ...

Question

Consider the number $N = 87 a 27931 b$ , where $b$ is a digit at unit's place and $a$ is a digit at ten lakh's place. Answer the following questions.
The greatest value of $b$ for which $N$ is divisible by $8$ is

0

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2

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4

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6

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Solution

The correct option is B $2$
$\begin{matrix} F o r n u m b e r t o b e d i v i s i b l e b y 8, t h e l a s t 3 d e i g i t s o f n u m b e r m u s t b e d i v i s i b l e b y 8. I n N l a s t t h r e e d i g i t i s 31 b, a n d t o m a k e i t d i v i s i b l e b y 8, b m u s t b e 2, s o t h a t 312 i s d i v i s i b l e b y 8. \end{matrix}$

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Similar questions

Q. Consider the number

N = 87 a 27931 b

, where

b

is a digit at unit's place and

a

is a digit at ten lakh's place. Answer the following questions.
The least value of

a

for which

N

is divisible by

12

Question 167

In a five-digit number, digit at ten's place is 4, digit at unit's place is one - fourth of ten's place digit, digit at hundred's place is 0, digit at thousand's place is 5 times of the digit at unit's place and ten thousand's place digit is double the digit at ten's place. Write the number.

Q. In a five-digits number, digit at ten's place is

3,

digit at unit's place is one third of ten's place digit, digit at hundred's place is

0,

digit at thousand's place is

4

times of the digit at unit's place and ten thousand's place digit is triple the digit at ten's place. Then the number is:

Question 13

In the following question out of the four options only one is correct, write the correct answer.

The digit in the ten's place of a two-digit number is 3 more than the digit in the unit's place. Let the digit at unit's place be b. Then, the number is:

(a)11b + 30

(b) 10b + 30

(d) 10b + 3

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Consider the number N=8 7 a 2 7 9 3 1 b, where b is a digit at unit's place and a is a digit at ten lakh's place. Answer the following questions. The greatest value of b for which N is divisible by 8 is

The correct option is B 2Fornumbertobedivisibleby8,thelast3deigitsofnumbermustbedivisibleby8.InNlastthreedigitis31b,andtomakeitdivisibleby8,bmustbe2,sothat312isdivisibleby8.

Consider the number $N = 87 a 27931 b$ , where $b$ is a digit at unit's place and $a$ is a digit at ten lakh's place. Answer the following questions.
The greatest value of $b$ for which $N$ is divisible by $8$ is