Subject Experts Solutions for Chapter: H.C.F. and L.C.M., Exercise 1: EXERCISE

There are three pieces of wooden logs which are $42 m, 49 m,$ and $63 m$ long. What is the greatest possible length by which these can be measured?

The least number, which when divided by $5, 6, 7,$ and $8$, leaves a remainder of $3$, but when divided by $9$, leaves no remainder, is:

The largest number, which exactly divides $210,315,147$, and $168$, is:

Which one of the following is in the descending order?

Five bells begin to toll together and toll respectively at the intervals of $6, 7, 8, 9,$ and $12$ seconds. After how many seconds, will they toll together again?

Two numbers are in the ratio of $3:4$, and the product of their $LCM$ and $HCF$ is $10800$. The sum of the numbers is:

If the $LCM$ of $x$ and $y$ is $z,$ then their $HCF$ is:

The highest common factor of $70$ and $245$ is _____.