Written test
A written test was taken by 35 students, the test contained 3 tasks, 2 students solved only one task, and three students only two tasks. Task no. 1 and task no. 2 were solved by 16 students, and tasks 2 and 3 by 14 students. All tasks were solved by 10 students. 1 and 3 were solved by 31 students, and 3 students did not solve the first nor the second task.
How many students solved:
a) at least 2 tasks
b) at least 1 task
How many students solved:
a) at least 2 tasks
b) at least 1 task
Final Answer:
You need to know the following knowledge to solve this word math problem:
algebrabasic operations and conceptsGrade of the word problem
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