MBA Exam

The numbers 2144 and 372 are converted into base 12 and written one beside the other. How many integers are there in the resulting number?

1) 74
2) 73
3) 71
4) 75

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MBA Other Question

Rishab"s mother starts from home,every day,drives to his school and reaches there exactly at 4:00 pm , and immediately picks him up from there and drives back home.One day, rishabh left school at 3pm and started walking home, without waiting for his mother.He met his mother on the way and together they reached home 40/3 minutes earlier than usual.If the next day,he left school at 3:30 pm , and started walking towards home ,how many minutes earlier than usual did they reach home?please please share the approach

1) 12
2) 8
3) 20/3
4) 19/3
Find the number of digits in 63^65, given log 3 = 0.477 and log 7 = 0.845.post the approach plz

1) 115
2) 116
3) 117
4) 118