Rahul Sofat Solutions for Chapter: Playing with Numbers, Exercise 11: SOME NCERT TEXTBOOK QUESTIONS

Write the smallest digit and the greatest digit in the blank space of each of the following numbers so that the number formed is divisible by $3$:

$4765$_____$2$

Write a digit in the blank space of each of the following numbers so that the number formed is divisible by $11.$

$92\_389$

Write a digit in the blank space of each of the following numbers so that the number formed is divisible by $11.$

$8\_9484$

Here are two different factor trees for $60.$ Write the missing numbers.

Here are two different factor trees for $60.$ Write the missing numbers.

HCF of co-prime numbers $4$ and $15$ was found as follows by factorization:

$4=2\times 2$ and $15=3\times 5$ since there is no common prime factor, so HCF of $4$ and $15$ is $0$. Is the answer correct? If not, what is the correct HCF?

The length, breadth and height of a room are $825 \mathrm{cm}$, $675 \mathrm{cm}$, and $450 \mathrm{cm}$ respectively. Find the longest tape which can measure the dimensions of the room exactly.

Find the least number which when divided by $6, 15$ and $18$ leave the remainder $5$ in each case.