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Step-5

Title: Ratios

Grade: 8-a Lesson: S2-L3

Explanation: Let us verify the answer here with the steps.

Description:

Step	Type	Explanation	Answer
1	Problem	In a bag, the ratio of red and yellow roses present is 3:4. If the bag contains 60 red roses. Find the number of yellow roses.
2	Hint	Operator used : Ratio	:
3	Step	Let 'y' be the number of yellow roses
4	Step	Red roses / yellow roses	\$3/4\$ = \$60/y\$
5	Step	After cross multiplication	\$3\$ x \$y\$ = \$4\$ x \$60\$
6			\$3y\$ = \$240\$ \$y\$ = \$\cancel(240)^80 / \cancel(3)^1\$ \$y\$ = 80
7	Step	Hence, the number of yellow roses in the bag	80

Step

Type

Explanation

Answer

Problem

In a bag, the ratio of red and yellow roses present is 3:4. If the bag contains 60 red roses. Find the number of yellow roses.

Hint

Operator used : Ratio

Step

Let 'y' be the number of yellow roses

Step

Red roses / yellow roses

\$3/4\$ = \$60/y\$

Step

After cross multiplication

\$3\$ x \$y\$ = \$4\$ x \$60\$

\$3y\$ = \$240\$
\$y\$ = \$\cancel(240)^80 / \cancel(3)^1\$
\$y\$ = 80

Step

Hence, the number of yellow roses in the bag