Jharne De Solutions for Chapter: HCF and LCM, Exercise 7: Worksheet

A community hall is $16 \mathrm{m} 50 c\mathrm{m}$ long and $15 \mathrm{m} 25 \mathrm{cm}$ wide. It is to be paved by square marble stone tiles of the same size. Find the largest size of the tile that can be used and the least number of such tiles required.

A shop is open every day. The farmer delivers milk to it  every $2$ days and butter every $3$ days. Today they had a delivery of both milk and butter. How many days will it be before the next deliveries arrive at the same day?

Here is a list of number: $4, 7, 18, 28, 11, 23, 27$.

Two numbers that add up to $27$.

Here is a list of number: $4, 7, 18, 28, 12, 23, 27$. Find the sum of two numbers that have a difference of $4$.

Here is a list of numbers: $4, 7, 18, 28, 11, 23, 27$.

The largest multiple of $9$ from the list:

Among the numbers $4, 7, 18, 28, 11, 23 \& 27$, a factor of $7$ is

Among the numbers  $4, 7, 15, 28 \& 10$, a factor of $1771$ is

Here is a list of number: $4, 7, 18, 28, 11, 23, 27$.

Three prime numbers.

(Write in the format of _____, _____, _____ in the answer box)