Fractions And Percentages | Mathematics #shorts #ashortaday #backtobasics #maths

Out of 80 students who appeared in a combined test in science and Mathematics,64 passed in at least one subject.If 45 passed in science and 52 in maths then number of students failed in maths only is

If the numerator of a fraction is increaed y 350 % and the denominator of the fraction is increased by 300% the resultant fraction is (9)/(22) . What is the original fraction ?

If the numerator of a fraction is increased by 200% and the denominator of the fraction is increased by 150% , the resultant fraction is 9 //35 . What is the original fraction ?