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Step-5

Title: Ratio

Grade: 6-a Lesson: S3-L8

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

Lesson Steps Head1

Step	Type	Explanation	Answer
1	Problem	If the ratio of number of burgers sold to the number of pizzas sold are 28: 40. Find the number of burgers sold, if in total 90 pizzas were sold?
2	Formula:	Consider a total number of burgers sold is 'x'
3	Step	The ratio of the number of burgers sold to the number of pizzas sold are	28 :40
4	Step	the number of total pizzas were sold is	90
5	Step	The ratio of burgers sold to pizzas sold equals the total number of burgers sold divided by the total number of pizzas sold	28 : 40 = x : 90 \$28/40 = x/90\$
6	Step	Cross multiply each other, we get	\$40 times x = 28 times 90\$ 40x = 2520
7	Step	simplify the equation	x = \$cancel2520^315/ cancel40^5\$ x = \$cancel315^63 / cancel5^1\$ x = 63
8	Step	The total number of burgers sold is	63
9		Answer	A

Step

Type

Explanation

Answer

Problem

If the ratio of number of burgers sold to the number of pizzas sold are 28: 40. Find the number of burgers sold, if in total 90 pizzas were sold?

Formula:

Consider a total number of burgers sold is 'x'

Step

The ratio of the number of burgers sold to the number of pizzas sold are

28 :40

Step

the number of total pizzas were sold is

Step

The ratio of burgers sold to pizzas sold equals the total number of burgers sold divided by the total number of pizzas sold

28 : 40 = x : 90

\$28/40 = x/90\$

Step

Cross multiply each other, we get

\$40 times x = 28 times 90\$

40x = 2520

Step

simplify the equation

x = \$cancel2520^315/ cancel40^5\$

x = \$cancel315^63 / cancel5^1\$

x = 63

Step

The total number of burgers sold is

Answer