Real Numbers Te...

Which of the following is the correct prime factorization of 1230?

Which of the following expressions on simplification gives a rational number?

What is the greatest number that will exactly divide 225 and 375?

A shopkeeper has 420 Science books and 130 Maths books. He wants to stack them so that each stack has the same number of books and they take up the least area of his shelf. Each stack should have one type of book. How many books can be placed in each stack?

Which of following is true for Euclid's division algorithm between two numbers 'a' and 'b'?

In Euclid's Division Lemma, when a=bq+r where a and b are positive integers then what values r can take?

Which of the following is an irrational number?

A wholesale dealer has stocks of three different varieties of tea weighing 132 kg, 156 kg and 84 kg. He wants to pack all of these into boxes of equal size, without mixing. What is the capacity of the largest possible box such that all the boxes are completely filled?

Which of the following fractions will have a non-terminating decimal expansion?

Traffic lights at three consecutive road crossings change after every 48 seconds, 72 seconds and 108 seconds. If the lights change simultaneously at 7:00:00 a.m, at what time will they again change simultaneously?

Find the greatest number that will divide $90$ and $107$ and leave remainders $2$ and $3$, respectively.