# Ratio - 7th grade (12y) - math problems

#### Number of problems found: 331

• Change per hour On Sunday, the temperature was 63 degrees at 2 pm. The temperature was then 72 degrees at 5 pm. What is the rate of change per hour?
• A sum A sum of money is shared between Peter, John and Henry in the ratio 2:3:5. a) express Henry's share as fraction of John's share. b) what fraction of the whole sum of money is John's share?
• Aspect ratio Determine the ratio of the length to the width of a picture frame that is 12 3/4 inches long and 8 1/2 inches wide.
• A perimeter A perimeter of a parallelogram is 2.8 meters. The length of one of its sides is equal to one-seventh of the entire perimeter. Find lengths of the sides of the parallelogram.
• Nails If a keg of nails costs \$129.45 and 6/7 of the keg is used, what is the value of the remaining nails?
• Math club A math club has 25 members of which 11 are male and the rest are female. What is the ratio of all male to all club?
• An orchard In an orchard, there are 28 apple trees 27 orange trees and 14 cherry tree. What is the ratio of apple trees to cherry trees?
• Ember Ember spent \$144 on her birthday party for 18 guests. If the cost is at the same rate, how many guests will there if she spends \$176? A basket is full of 50 different kinds of fruits that has a ratio of 2:3:5. If the fruits are apple, mango, and guava, how many guavas are there?
• Sides of a rectangle The dimensions of a rectangle are in a 4:12 ratio. If the shorter side length is 12 cm, what is the length of the longer side in centimetres?
• What is 9 What is the value of x in the proportion 2 and one-fourth over x = 1 and one-half over 3 and three-fifths? 2 and two-fifths 5 and two-fifths 8 and 1 over 10 12 and 3 over 20
• Chocolate to sweets I have 30 basket sweets and 15 chocolate in a basket. If take 5 sweet out of the basket what is the ratio in simplest form of the chocolate to the numbers of sweet left in the basket?
• Big school kitchen If 250 learners can be fed by 75kg. How many kg can 600 learners can be fed?
• Dinner tickets At the spring festival, 7 out of the first 25 attendees had pre-purchased their dinner tickets. Based on this information, if 600 people attended the spring festival, then how many attendees could be expected to have pre-purchased their dinner tickets?
• Anna uses Anna uses 8.1 pints of white paint and blue paint to paint her bedroom walls. 4/5 of this amount is white paint, and the rest is blue paint. How many pints of blue paint did she use to paint her bedroom walls? Express your answer in fraction and decimal f
• Translate Translate the following mathematical statement into an algebraic expression or equation. 1. Nine less that the quotient of a number and 3 2. The ratio of 3 and the sum of 4 and an unknown number 3. Eighty is the product of 4 and g 4. The sum of x and 18 i
• An amusement An amusement park sold 40 child tickets. The other 10 tickets it sold were adult tickets. What is the ratio of the number of adult tickets to the number of child tickets?
• An architect 2 An architect is designing a house. He wants the bedroom to have the dimensions of 8 ft by 4 ft by 7 ft. The architect doubles all three dimensions to create the den. Does that mean the den will have double the volume of the bedroom? First, find the volume
• Ratio to total 7:12 is the ratio of orchids to tulips. What is the ratio of the number of orchids to the total number of flowers in the garden?
• Forty Forty five of the 80 students were girls. What is the ratio of girls to boys?

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