If AB is divisible by 5 but not by 2 and BA is divisible 3 - Then which of the following is possible value of A and B - a- A -5- B -2b- A-4-B-5c- A -7- B -5d- A -4- B -0This is a question from byjus practise questions- According to the app the correct answer is -b- but isn-t the value of AB suppose to not be divisible by 2 and 4 - 5-20 which is divisible by 2 and also it is not divisible by 3 - So in short i mean that isn-t the answer wrong-

We are extremely sorry..The correct answer is C NOTE: And here,AB doesnot mean A×B. In C, AB is just 75 not 7×5=35. ...

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Standard VIII

Mathematics

Factors of Natural Numbers

If AB is divi...

Question

If AB is divisible by 5 but not by 2 and BA is divisible 3. Then which of the following is possible value of A and B?

a.A=5,B=2

b.A=4,B=5

c.A=7,B=5

d.A=4,B=0

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Solution

Given two digit number is AB, where B is divisible by 5 but not by 2.
So, B=5 is divisible by 5 but not by 2.
And BA=5A is divisible by 3,
So, 5+A is divisible by 3, So the possible values of are 1, 4, 7.
Thus, required number be AB=15 or 45 or 75.
Hence, the correct option is C (A=7, B=5)

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If AB is divisible by 5 but not by 2 and BA is divisible 3. Then which of the following is possible value of A and B? a.A=5,B=2 b.A=4,B=5 c.A=7,B=5 d.A=4,B=0

Given two digit number is AB, where B is divisible by 5 but not by 2.So, B=5 is divisible by 5 but not by 2.And BA=5A is divisible by 3,So, 5+A is divisible by 3, So the possible values of are 1, 4, 7.Thus, required number be AB=15 or 45 or 75.Hence, the correct option is C (A=7, B=5)

If AB is divisible by 5 but not by 2 and BA is divisible 3. Then which of the following is possible value of A and B?

a.A=5,B=2

b.A=4,B=5

c.A=7,B=5

d.A=4,B=0

Given two digit number is AB, where B is divisible by 5 but not by 2.
So, B=5 is divisible by 5 but not by 2.
And BA=5A is divisible by 3,
So, 5+A is divisible by 3, So the possible values of are 1, 4, 7.
Thus, required number be AB=15 or 45 or 75.
Hence, the correct option is C (A=7, B=5)