In a Class of 120 students numbered 1 to 120, all even numbered students opt for Physics , those whose numbers are divisible by 5 opt for Chemistry and those whose numbers are divisible by 7 opt for Math. How many opt for none of the three subject ?

g (x) = For the function g defined above or is a constant and g(4) =8 . What is the value of g(-4) ?

If y= kx, where k is a constant , and y= 24 when x=6, what is the value of y when x =5 ?

A man spent 1/2 of his money and then lost 1/4 of the remainder. He was left with TK. 3,600. How much did he s...

If the difference between the circumference and diameter of a circle is 60 cm, then the radious of the circle...

A triangular plot with sides of 25 feet, 40 feet and 55 feet is to be surrounded by a fence built on pillars s...

Which of the following is the lowest positive integer that is divisible by 8,9,10,11 and 12?