SBI-Ratio Independent Practice Flashcards
All 42 animals in the Children’s Zoo are either mammals or reptiles. 3 out of 7 are mammals, and 4 out of 7 animals are reptiles. How many more reptiles than mammals are in the zoo?
A bag contains 60 marbles, some blue and some green. The ratio of blue marbles to green ones is 1 : 5. How many blue marbles are there?
Try using another facts.
Ray want to divide his $320 money into two piece according to the ratio 3 : 5. He will give donate the smaller part to charity and keep the larger part to buy a computer. How much will he donate to charity?
Fact #1:____________. Fact#2:______________
Step 1:__________________________________
Step 2:__________________________________
Step 3:__________________________________
There are 30 children in Ms. Robinson’s class. The ratio of the number of boys to the number of children in Ms. Robinson’s class is 3:5. How many boys are in the class? How many girls are in the class?
Janet only listens to rock and hip-hop music on her iPhone. Altogether she has 400 MP3s on her iPhone. The ratio of the number of her hip-hop songs to the number of her rock songs is 3:5. How many hip-hop songs does she have?
Will only owns Nike and Under Armour shirts. The ratio of Will’s Nike shirts to his Under Armour shirts is 4:11. If Will has 30 shirts total, how many of them are Nike?
Monica has 3 red roses in her bouquet for every 5 yellow roses. The bouquet has two dozen red and yellow roses. How many are red roses? Use a ratio to solve the problem.
A kennel has 90 dogs in total, some are puppies and some are adult dogs. The ratio of puppies to adult dogs in a kennel is 3 : 2. How many puppies are there?
A jar contains 1040 beans. Of all the beans, 1/2 are azuki beans and the rest are cranberry beans. What is the ratio of azuki beans to cranberry beans?
There are 30 children in Ms. Robinson’s class. The ratio of the number of girls to the number of boys in Ms. Robinson’s class is 2:3. (1) How many girls are in the class? (2) How many boys are in the class?
