Question

Find the smallest value of 'x' ('x' is a natural number) such that '47x821' is completely divisible by 3.

Q: Answer-Find the smallest value of 'x' ('x' is a natural number) such that '47x821' is completely divisible...

A number is divisible by 3 when sum of its digits is divisible by 3. Sum of digits 4 7 x 8 2 1 x 22 x 22 is divisible by 3 when x 2, 5 or 8 Since we need the smallest natural number, x 2

B 2

C 5

D 8

Practice Next

More Addition & subtraction Questions

The number of five–digit telephone numbers having at least one of their digits repeated is
There are total 200 students in a school, of which 1/5   are boys. Find the number of girls in the school.
Select the option that is related to the third number in the same way as the second number is related to the ﬁrst number.  12 : 60 :: 16 : ?
24.89² ÷ (34.33 ÷ 20.02) + 67.85 – 89.01 = ?
Vishnu travelled equal distances at speeds of 10 km/hr., 30 km/hr., and 8 km/hr., and took a total of 15.5 minutes to complete. Find the total distance he ...
A sum of Rs.8200 is to be divided among 6 brothers, 5 sisters and 2 aunts. If each sister receives thrice as much as each aunt and each brother receives fo...
By which of the following symbol all Excel formula starts?
If sin x = 4/5, then Cosecx + Cot X =
__________is the process  that connects to a network without the use of cables.
Formatting a disk means?

Relevant for Exams:

Hey! Ask a query

Find the smallest value of 'x' ('x' is a natural number) such that '47x821' is completely divisible by 3.

Detailed Solution

More Addition & subtraction Questions

Relevant for Exams:

Hey! Ask a query

Please Register/Login