FRAME NUMBER 3

LEVEL A

A ratio may be written also with two figures placed horizontally and separated by a colon.

Example: A ratio of 2 to 3 may be written 2:3; hence a ratio of 3 to 2 is written

.

FRAME NUMBER 16

LEVEL B

Mr. Smith left directions to divide his estate among three children in the ratios 2:3:4. If the

estate amounted to ,000, how much should each part be?

This completes the lesson frame on ratios. Now, proceed to proportions.

FRAME NUMBER 29

LEVEL C

Now let's set up different types of problems concerned in mapping. Type 1. The scale of a map

is 1:25,000... What is the map. distance if the distance on the ground is 1,250 feet? Express in inches.

In phrasing the verbal expression, we say: 2 is to 25,000 as map distance (unknown) is to ground

distance (1,250 feet). We write as

1

X

=1,250 x 12"

25,000

Complete the solution:

7

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