Question Text
Question 3 :
The number of possible pairs of number, whose product is 5400 and the HCF is 30 is<br>
Question 4 :
State True or False:$4\, - \,5\sqrt 2 $ is irrational if $\sqrt 2 $ is irrational.
Question 7 :
Determine the HCF of $a^2 - 25, a^2 -2a -35$ and $a^2+12a+35$
Question 8 :
................. states the possibility of the prime factorization of any natural number is unique. The numbers can be multiplied in any order.
Question 10 :
State true or false of the following.<br>The predecessor of a two digit number cannot be a single digit number.<br>
Question 11 :
When a natural number x is divided by 5, the remainder is 2. When a natural number y is divided by 5, the remainder is 4. The remainder is z when x+y is divided by 5. The value of $\dfrac { 2z-5 }{ 3 } $ is