In a class of 50 students, each one come to school by bus or by bicycle or on foot. 25 by bus, 20 by bicycle, 30 on foot and 10 students by all the three. Now how many students come to school exactly by two modes of transport?

In a class of 50 students, each of the students passed either in mathematics or in a science or in both 10 students passed in both and 28 passed in science. Find how many students passed in mathematics only.

In a class of 60 students, 60% are boys. If 25% of the girls come to school by bicycle, find the number of girls who don't come cycling to school?

In a class of 60 students, 60% are boys. If 25% of the girls come to school by bicycle, find the number of girls who don't come cycling to school?

A school awarded 42 medals in hockey, 18 in basketball and 23 in cricket. If these medals were bagged by a total of 65 students and only 4 students got medals in all the three sports, how many students received medals in exactly two of the three sports ?

A school awarded 58 medals in three sports, namely 38 in football, 15 in basketball and 20 in cricket. If 3 students got medals in all the three sports, how many received medals in exactly two sports ?

(2)/(5) of total number of students of a school come by car while (1)/(4) of students come by bus to school. All the other students walk to school of which (1)/(3) walk on their own and the rest are escorted by their parents. If 224 students come to school walking on their own, how many students study in that school?

Following pie chart shows the degree wise distribution of the students of a school using different transport while going to school. Read the chart answer the questions carefully. Total number of students = 2160 Find the ratio of number of students who come to school by bus and that of by car.