Aptitude - Numbers - Discussion

Discussion Forum : Numbers - General Questions (Q.No. 37)

Numbers

37.

A 3-digit number 4a3 is added to another 3-digit number 984 to give a 4-digit number 13b7, which is divisible by 11. Then, (a + b) = ?

Answer: Option

Explanation:

 4 a 3  |
 9 8 4  }  ==> a + 8 = b  ==>  b - a = 8  
13 b 7  |

Also, 13 b7 is divisible by 11 (7 + 3) - (b + 1) = (9 - b)

(9 - b) = 0

b = 9

(b = 9 and a = 1) (a + b) = 10.

Discussion:

35 comments Page 4 of 4.

Raja said: 1 decade ago

Any one please explain the logic.

(1)

Chitra said: 7 years ago

Nice explain @Samyuktha.

(3)

Yash said: 1 decade ago

Nice explanation dudes.

Md. saifuzaman said: 8 years ago

Thank you @Uma.

Vishal Chauhan said: 8 years ago

Thanks @Uma.

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