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If P and Q are the two different prime numbers then find the number of divisor of P2·Q.

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Important Questions on Number Systems

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If P and Q are the two different prime numbers then find the number of divisor of P3·Q2.
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The sides of a pentagonal field (not regular) are 1737 metres, 2160 metres, 2358 metres,1422 metres and 2214 metres respectively.  Find the greatest length of the tape by which the five sides may be measured completely.
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There are 576 boys and 448 girls in a school that are to be divided into equal sections of either boys or girls alone. Find the minimum total number of sections thus formed.
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A milkman has three different qualities of milk. 403 gallons of 1st quality,465 gallons of 2nd quality and 496 gallons of 3rd quality. Find the least possible number of bottles of equal size in which different milk of different qualities can be filled without mixing.

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What is the greatest number of 4 digits that when divided by any of the numbers 6,9,12,17 leaves a remainder of 1?
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Find the least number that when divided by 16,18 and 20 leaves a remainder 4 in each case,but is completely divisible by 7.
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Four bells ring at the intervals of 6,8,12 and 18 seconds. They start ringing together at 12’O clock. After how many seconds will they ring together again?
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Four bells ring at the intervals of 6,8,12 and 18 seconds. They start ringing together at 12'O clock. find how many times will they ring together during the next 12 minutes, (including the 12 minute mark).