Book Maths Puzzle Algebra

One number is more than 3 times another. Their sum is 21. What is their product?

Read Solution (Total 0)

Book Other Question

If the degree measure of the smallest angle of a triangle is one-half of the degree measure of the second largest angle and one-third of the degree measure of the largest angle, th Two trains are 360 miles apart at 7:00 AM and are traveling on the same track moving toward one another. One train is traveling at 40 moh, and the other is traveling at 50 mph. At