Question

If a number 72k23l is divisible by 88. Then find value of k and l ?

Answer 1

Answer:

K = 7 ; I = 2

Step-by-step explanation:

FOR DIVISIBILITY OF 11 ; ALTERNATE DIGIT SHOULD HAVE DIFFERENCE OF 0 OR 11 THEN IT WILL BE DIVISIBLE BY 11.

CASE-1

7 + K + 3 - 2 - 2 - I = 0 ⇒ K - I = -5 

CASE-2

7 + K + 3 - 2 - 2 - I = 11 ⇒ K - I = 6

FOR DIVISIBILITY OF 8 ; LAST THREE DIGITS SHOULD BE DIVISIBLE BY 8

23I/8

HENCE , FROM 230-239 ONLY ONE NO. IS DIVISIBLE 232

I = 2

K = 7 OR K = -()__NOT POSSIBLE

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