Three bells ring at interval of 36 seconds, 40 seconds and 48 seconds respectively. They start ringing together at a par- ticular time They will ring to gether after every 

The sides of a triangle are in the ratio 3 : 4 : 5. The measure of the largest angle of the triangle is

The volume of a right rectangular pyramid is 220 m³. What is the height of the pyramid, if the area of its base is 55 m²? 

$$ {40 \%}\ of( {20\over 4}×?)=48$$

Given that ΔDEF ~ ΔABC. If the area of ΔABC is 9 cm² and area of ΔDEF is 12cm2 , BC = 2.1 cm, then the length of EF is:

Direction: What value will come in place of the question mark (?) in the following question?

33, 42, 67, 116, 197, ?

Two equal circles intersect such that each pass through the center of the other. If the length of the common chord of the circle is 10√3 cm, then what is the diameter of the circle?

The measure of an angle whose supplement is three times as large as its complement, is