One apple weighs 75 grams and one orange weighs 40 grams. Determine the weight of `x` apples and `y` oranges.

How much would one amu weigh in grams ?

If 28 pennies weigh 42 grams, what is the weight in grams of 50 pennies?

A certain radioactive element has a half-life of one year. This means that after 1 year, 1 gram of the element has decayed to 1/2 gram , after 2 years the weight is (1/2)(1/2)=(1/4) grams, after 3 years the weight is (1/4)(1/2)=(1/8) grams, and so on. Which of the following represents the weight of the sample as a function of time x ?

12 apples weigh 2 kg 500 g. How many apples will weigh 15 kg?

In a survey of 400 students in a school, 100 were listed as taking apple juice, 150 as taking orange juice and 75 were listed as taking both apple as well as orange juice. Find how many students were taking neither apple juice nor orange juice.

The cost of 3 oranges and 12 apples is Rs. 9.60 and the cost of 5 oranges and 7 apples is Rs. 6.90. Find the cost of apples per dozen.

A fruit basket has 20 apples and 30 oranges. Fina a. the ratio of the number of apples to the number of oranges, and b. the ratio of the number of oranges to the total number of fruits in the basket.

During its first week of business a market sold a total of 108 apples and oranges. The second week, five times the number of apples and three times the number of oranges were sold. A total of 452 apples and oranges were sold during the second week. How many more apples than oranges were sold in the first week?

In a basket, the ratio between the number of oranges and the number of apples is 7 : 13 . If 8 oranges and 11 apples are eaten, the ratio between the number of oranges and the number of apples becomes 1 : 2 , Find the original number of oranges and the original number of apples in the basket.

How many moles of electrons weigh one kilogram?