Question

one number is 7 times a first number. A third number is 100 more than the first number. if the sun of these three numbers is 910 find the numbers

Answer 1

The first number is 90, the one(second) number is 630, and the third number is 190.

Word problems leading to the algebraic equation:

Word problems in mathematics are words written with a mathematical approach and it requires the use of the student's understanding of various mathematical concepts to arrive at a probable solution to the word problems. Word problems are used in mathematics to solve our daily life challenges.

From the given information, given that:

• Let the first number be x

• One(second) number is 7 times the first number. Let that number be $y = 7x$
• A third number is 100 more than the first number i.e $z = 100 + x$

The sum of these three numbers is 910. i.e.

x+ y + z = 910

It implies that:

x + 7x + 100 + x  910

9x + 100 = 910

9x = 900 - 100

9x = 810

x = 90

y = 7(90) = 630

z = 100 + 90 = 190

Learn more about word problems in mathematics here:

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