Question 1 :
A ladder 10 m long rests against a vertical wall. If the foot of the ladder is 6 m away from the wall and the ladder just reaches the top of the wall, how high is the wall?
Question 2 :
There are 21 natural numbers between $10^2$ and $11^2$. Is it true or false ?
Question 4 :
Find the square root of the perfect square we will get by adding least number to 1500.
Question 6 :
Number obtained when a number is multiplied by itself is called
Question 7 :
Using prime factorisation, find which of the following is perfect squares.
Question 8 :
A square board has an area of 144 square units. How long is each side of the board?
Question 9 :
Number obtained when a number is multiplied by itself three times is called
Question 11 :
During a mass drill exercise, 6250 students of different schools are arranged in rows such that the number of students in each row is equal to the number of rows. In doing so, the instructor finds out that 9 children are left out. Find the number of children in each row of the square.
Question 12 :
Using prime factorisation, find which of the following is perfect squares.
Question 13 :
Cube of a number ending in 7 will end with which digit.
Question 14 :
A perfect square can have 8 as its units digit. Is it true or false ?
Question 15 :
All numbers of a pythagorean triplet are odd. Is it true or false ?
Question 16 :
A hall has a capacity of 2704 seats. If the number of rows is equal to the number of seats in each row, then find the number of seats in each row.
Question 17 :
State true or false: A number ending in odd numbers of zeros is a perfect square.
Question 19 :
On dividing 216 with a smallest number in order to make a perfect square, then find the square root of quotient.
Question 20 :
A number having 7 at its ones place will have 3 at the ones place of its cube. Is it true or false ?
Question 21 :
The square of 2.8 is 78.4. Is it true or false ?
Question 22 :
Find the smallest perfect square divisible by 3, 4, 5 and 6.
Question 23 :
Cube of an even number is odd. Is it true or false ?
Question 24 :
999 is a perfect cube. Is it true or false ?
Question 25 :
The cube of 0.4 is 0.064. Is it true or false ?