For the following questions answer them individually
The sum of two positive integers is 80 & difference between them is 20. Then what is difference of squares of those numbers ?
The difference between the selling prices of an article sold at 4% and 3% profits is 3. The cost price of the article is :
In a school there are 1500 students, 44% of them are girls. Monthly fee of each boy is 540 and fee of each girl is 25% less than that of a boy. The sum of fees of boys & girl is
The time for a train of length 110 metres running at the speed of 72 km/hr to cross a bridge of length 132 metres is
Simplify the equation $$\frac{(0.73)^3+(0.27)^3}{(0.73)^2+(0.27)^2-(0.73)\times(0.27)}$$
In a circle, two arcs of unequal length subtend angles in the ratio 5:3. If the smaller angle is 45° then the measure of other angle in degrees.
Ganesh, Ram and Sohan together can complete a work in 16 days. If Ganesh and Ram together can complete the same work in 24 days. The number of days Sohan alone takes, to finish the work is
