Answer this question:Walter fell from the eighth platform of some scaffolding and fell past David after falling 4 meters. If he fell for an additional three more times that depth before hitting the ground, and the platforms are evenly spaced out in height, what platform was David on?
Walter fell 4 meters and an additional three times that depth which is 3 * 4 = 12 meters. He fell for a total of 4 + 12 = 16 meters. The eighth platform is 16 meters high and the platforms are evenly spaced so each platform is 16 / 8 = 2 meters high. David was located 4 meters below the 16 meter level which is 16 - 4 = 12 meters high. Each platform is 2 meters high so 12 meters would mean the 12 / 2 = 6th platform.
The answer is 6.

Answer this question:At peak season, 6 packs of tuna fish are sold per hour, while in a low season 4 tuna packs are sold per hour. If each tuna pack is sold at $60, How much more money is made in a day during a high season than a low season if the fish are sold for 15 hours?
6 packs of tuna fish are sold per hour. If the sales are made for 15 hours, the total number of packs sold is 4 = 6 * 15 = 90 packs. At $60 per pack, during a high season, the total sales in 15 hours are 90 * $60 = $5400. 4 packs of tuna fish are sold per hour. If the sales are made for 15 hours, the total number of packs sold is 4 * 15 = 60 packs. At $60 per pack, during a low season, the total sales in 15 hours are 60 * $60 = $3600. The amount of money that is made after 15 hours during a high season than a low season is $5400 - $3600 = $1800.
The answer is 1800.

Answer this question:Yvonne and Janna were writing their 1000-word pair research paper. Yvonne was able to write 400 words while Janna wrote 150 more words than Yvonne. When they edited their paper, they removed 20 words and added twice as many words as they removed. How many more words should they add to reach the research paper requirement?
Janna wrote 400 + 150 = 550 words. Together, they wrote 400 + 550 = 950 words. They have 950 - 20 = 930 words left after omitting 20 words. Then 20 x 2 = 40 words were added during the editing. Overall, they have 930 + 40 = 970 words. Thus, they should add 1000 - 970 = 30 more words.
The answer is 30.

Answer this question:Samanta is planning a party for her friend Marta. She decided to raise some money among the guests she invited, to buy Marta a gift. Every participant gave Samanta $5 for this purpose and she herself put in $10. The gift cost was lower than expected, so there was $15 leftover. What was the price of the gift, if there were 12 guests invited?
From all the guests Samanta got $5 / guest * 12 guests = $60. Including money Samanta put herself, she had $60 + $10 = $70. The cost of the gift was $70 - $15 = $55.
The answer is 55.