10(x+1) + 5x = 100 = $1 15x = 90 x = 6 ie., (10c × 7) + (5c × 6) = 70c + 30c = $1.
Grandma sent Johnny some money for his birthday. Johnny spent all of it in five stores. In each store, he spent $1.00 more than half of what he had when he came in. How much money did he get from grandma?
I have more than two animals at home. All of them are Dogs, except for two. All of them are Cats, except for two. All of them are Hamsters, except for two. What kinds of animals and how many of each animal do I have ?
A bottle and a cork together cost $1 and Penny 1. If the cost of bottle is more than that of the cork by $1, what is the cost of the bottle and that of the cork?
2 two digit numbers chosen in such a way that all 4 digits used are distinct, are such that their sum is 90. How many such pairs are possible if in both numbers units place is 1 more than tens place?
