In a box of mangoes, 80% of them are high-quality while 20% are low-quality. If 10 low-quality mangoes are removed, then 96% of the rest will be high-quality.
What is the total number of mangoes from the start?
There are 100 people in a room, exactly 99% are physicist. How many physicist must leave the room to bring down the percentage of physicist to exactly 98%?
If , then by what percent is larger than ?
There are 40 students in the classroom.
If two students wearing both glasses and sweaters leave the classroom, then which of the following is a possiblity for the percentage of students who wear neither glasses nor sweaters?