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Earn 100

A three-digit number in which all the three-digit numbers are odd is such that if the cubes of the digit are added, the sum would be equal to the number itself. If one of the digits is 7, find the number.

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Important Questions on Numbers and Their Properties

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A teacher said that there were 100 students in his class, 24 of whom were boys and 32 were girls. Which base system did the teacher use in this statement?
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What is the remainder when 3450 is divided by 108?
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P is a natural number. 2P has 28 divisors and 3P has 30 divisors. How many divisors of 6P will be there?
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pqr is a three-digit natural number such that pqr=p3+q3+r3.What is the value of r?
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There are two three-digit numbers. When one number is divided by another number, quotient obtained is 6 and remainder is 0. The sum total of both the numbers is a multiple of 504. What is the difference between the numbers?
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LCM of 1224, 1618and N is 2424. Number of all the possible values of N = S. What is the value of S?
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Each of P, Q, R, and S equals either0 or 1 . It is given that

If Q=0, then R=1;

If R=0, then P=S;

If S=0, then P=1;

Let us assume thatR=0, find the value of(P+Q+R+S)?
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When asked about his date of birth in 1996, Mayank replied that 'last two digits of my birth year stands for my age.' When Siddharth was asked about his age, he also replied the same. However, Siddharth is older to Mayank. What is the difference in their age?