4ab5 is a four digit number divisible by 55 where a, b are unknown digits. Then b – a is :
4ab5 is a four digit number divisible by 55 where a, b are unknown digits. Then b – a is :
Utkrisht , 9 Years ago
Grade 6
6 grade maths> 4ab5 is a four digit number divisible by ...
2 AnswersSourabh Singh
hii
It is very easy as he number given is a multiple of 11*5 so it must follow he divsibility rule of 11 and 5
use that and you will get the relation in a and b which will give you answer
It is very easy as he number given is a multiple of 11*5 so it must follow he divsibility rule of 11 and 5
use that and you will get the relation in a and b which will give you answer
Approved Last Activity: 9 Years ago
Yuvraj Singh
55=5*11.
We know in the no. 4ab5 last digit is 5 so its divisible by 5.
Its divisible by 11 also if its divisible by 11 then the sum of its odd and even terms must be divisible by
11.
4+b-(a+5)=a no. Divisible by 11.
b-a=(a no. Divisible by 11 ) +1.
now since b and a are single digit no. so 0 is the only no. which satisfies the equation. So the answer is 1.
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Other Related Questions on 6 grade maths
How many vertices, faces, and edges does a cuboid have?
How many vertices, faces, and edges does a cuboid have?
6 grade maths
1 Answer Available
Last Activity: 6 Months ago
Fill in the blank:
____________ INR 100 notes make 500 rupees.
- A. 5
- B. 6
- C. 7
- D. 4
Fill in the blank:
____________ INR 100 notes make 500 rupees.
- A. 5
- B. 6
- C. 7
- D. 4
6 grade maths
1 Answer Available
Last Activity: 6 Months ago
The smallest 7 digit number in the system is?
The smallest 7 digit number in the system is?
6 grade maths
1 Answer Available
Last Activity: 6 Months ago