The number of 2 digit numbers 'n' such that 3 divides n - 1 and 4 divides n - 2 is:
A) 7
B) 8
C) 10
D) 16
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C) 10
take a value from given option ..only 10 is satisfy all 3 condition
take a value from given option ..only 10 is satisfy all 3 condition
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Answer:
if u use brute force method which is basically trying out all possible combinations then you'll get answer as 8 sadly I didn't find any better solution sorry the pic is kinda unreadable u can take the numbers as x and y so sum of digits have to be divisible by 3 and 10x+y-2 shud be divisible by 4
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