Answer this question:Harrison Elementary School is overcrowded with 1590 students, so 40% of the students are going to move to a new school. There are 3 grade levels, and each grade level needs one 20-person advanced class and the rest of the students divided evenly into 6 additional classes. How many students will there be in each normal class at the new school?
First find how many students go to the new school: 1590 students * .4 = 636 students. Then divide that number by 3 to find how many students are at each grade level: 636 students / 3 grades = 212 students / grade. Then subtract the 20 students in the gifted class: 212 students - 20 students = 192 students. Then divide that number by 6 to find the number of students in each other class: 192 students / 6 classes = 32 students / class.
The answer is 32.

Answer this question:If the first skyscraper was built 100 years ago, how many years in the future will it be 5 years before its 200th anniversary of being built?
First, we perform 200 - 5 = 195 to find the number of total years from the building being built that we're looking for. Then, we subtract out the 100 years that have already passed to determine the remaining amount of time, performing 195 - 100 = 95 years in the future.
The answer is 95.

Answer this question:Youngsville had a population of 684 people. The town had a growth spurt and the population increased by 25% then they witnessed that 40% of the population moved away. What is the current population?
The town had 684 people then had a 25% growth spurt increasing the population by 684 * .25 = 171 people. The town had 684 people then they added 171 people bringing the population to 684 + 171 = 855 people. There were 855 people and 40% moved away so it decreased by 855 * .40 = 342. The population was 855 and 342 people moved away making the new population 855 - 342 = 513 people.
The answer is 513.

Answer this question:Antoinette weighs 7 less kilograms than twice Rupert's weight. Together they weigh 98 kilograms. How many kilograms does Antoinette weigh?
Let R = Rupert's weight. Antoinette = 2R - 7. R + 2R - 7 = 98. 3R = 105. Rupert = 35 kg. Antoinette = 2 * 35 - 7 = 63 kg. Antoinette weighs 63 kilograms.
The answer is 63.