Tag: math & puzzles

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A manufacturer can save x dollars per unit in production costs by overproducing in certain seasons. If storage costs for the excess are y dollars per unit per day (x > y) , which of the following expresses the maximum number of days that n excess units can be stored before the storage costs exceed the savings on the excess units?

How many gallons of water must be mixed with 1 gallon of a 15-percent salt solution to obtain a 10-percent salt solution?

The average of 7 numbers of a set is 33, if a new number ‘k’ is included in the set, then the average becomes 35. Col A: The value of k Col B: 47 which column is greater?

Jo's collection contains US, Indian and British stamps. If the ratio of US to Indian stamps is 5 to 2 and the ratio of Indian to British stamps is 5 to 1, what is the ratio of US to British stamps

Helpers are needed to prepare for the fete. Each helper can make either 2 large cakes or 35 small cakes per hour. The kitchen is available for 3 hours and 20 large cakes and 700 small cakes are needed. How many helpers are required

A cubical block of metal weighs 6 pounds. How much will another cube of the same metal weigh if its sides are twice as long?

What is the simplified result of following the steps above in order? (1) add 5y to 2x (2) multiply the sum by 3 (3) subtract x + y from the product