CDS Government Jobs Exams

A cylinder having a base of circumference 60 cm is rolling without sliding at the rate of 5 rounds per second. How much will the cylinder roll in 5 seconds ?

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CDS Other Question

What will be the last two digits of 2^(12n)-6^(4n), where n is positive integer? Consider the numbers between 300 and 400 such that when each number is divided by 6,9 and 12, it leaves 4 as remainder in each case. What is the SUM of the numbers?