B Nirmala Shastry Solutions for Exercise 11: SPEEDY TEST

If $1*567$ is divisible by $11$, then the value of $*$ is _____

The digit in the units place in the product of $2\times 2\times 5\times 7\times 7$ is _____

The product of two numbers is $96$. If the HCF of the numbers is $4$, then their LCM is _____

The smallest $4-$digit number which is exactly divisible by $6,9 \text{and} 15$ is _____. 

The smallest number which when divided by $12, 16$ and $18$ leaves a remainder of $7$ in each case is _____

A number between $560$ and $570$, which is divisible by $2, 3$ and $4$ is _____.

_____ is a pair of numbers which are not co-prime. $\left[\left(4, 15\right)/\left(7, 16\right)/\left(12, 35\right)/\left(9, 48\right)\right]$

The greatest number that exactly divides $375$ and $625$ is _____