Ratio Word Problems

In a bag of red and green sweets, the ratio of red sweets to green sweets is 3:4. If the bag contains 120 green sweets, how many red sweets are there?

John has 30 marbles, 18 of which are red and 12 of which are blue. Jane has 20 marbles, all of them either red or blue. If the ratio of the red marbles to the blue marbles is the same for both John and Jane, then John has how many more blue marbles than Jane?

A special cereal mixture contains rice, wheat and corn in the ratio of 2:3:5. If a bag of the mixture contains 3 kg of rice, how much corn does it contain?

Clothing store A sells T-shirts in only three colors: red, blue and green. The colors are in the ratio of 3 to 4 to 5. If the store has 20 blue T-shirts, how many T-shirts does it have altogether?

Paul and Jason had some sweets in the ratio 6:1. Paul gave half of his sweets to Jason. What is the ratio of the number of sweets Paul had left to the number of sweets Jason had at the end?

At first, the ratio of Sam’s savings to Ray’s savings was 5:4. After each of them donated $40 to charity, the ratio of Sam’s savings to Ray’s savings became 13:10. What was Sam’s savings at first?

Irene has a total of 1686 red, blue and green balloons for sale. The ratio of the number of red balloons to the number of blue balloons was 2:3. After Irene sold 3/4 of the blue balloons, 1/2 of the green balloons and none of the red balloons, she has 922 balloons left. How many blue balloons did Irene have at first?

Tags

CCSS.7.EE.B.3

There are 90 teddy bears in a shop yesterday. The ratio of teddy bears to toy cars was 6:11. After a wholesale order of a box of toy cars arrived at the shop, the ratio of the number of teddy bears to toy cars became 3:8. How many toy cars arrived in the box.