Find the largest 3 digit number which gives same remainder when divided by 13 or 17? A.998 B.996 C.896 D.884 How can we do this without options?

What is the HCF of 3n+23 and n+8? (Please explain with long division method)

Options were A. 36 B. 42 C. 56 D.60

The sum of 20 numbers(may or may not be distinct)is 801. What is their minimum LCM?

1/a+1/b+1/ab=1/n, where a and b are prime numbers and n is a whole number. Find a^2+b^2+n^2 1. 6 2. 10 3. 3 4. None of these I got a and b as 2 and ...

There are 40 lines in a plane of which a set of 12 lines are concurrent at A, another set of15 lines are concurrent at B and the set of remaining line...