Class
Written on 12:59 am by Vja Students
A problem has been proposed in class. At the end of the lesson it turned out that the number of boys, who had solved the problem, was the same as the number of girls, who had not solved it. Were there more girls in the class than students who had solved the problem?
Ans: The number of all the girls in the class equals to the number of students who solved the problem. Indeed, by the condition, the number of students who solved the problem equals to the sum of the number of girls who solved it and the number of boys, who solved it. But the number of boys who solved the problem is the same as the number of girls who did not solve the problem. So, the number of all the girls in the class equals to the number of students who solved the problem.
Can't be said ...
case-1:
#girls = #studs solved problem
only 1 girl and 1 boy; the boy solved it and the girl didn't.
case-2:
#girls > #studs solved problem
2 girls and 2 boys; 1 girl and 1 boy solved the problem.
case-3:
#girls < #studs solved the problem
not possible.
Total number of Girls is Equal to the number of student who has solved the Problem....
2 girls and 2 boys; 1 girl and 1 boy solved the problem
My apologies ...
case-2 above also gives
#girls = #studs solved problem
so yes,
#girls = #studs solved problem (ALWAYS)