Question

If a dozen exercise books cost $144,what will 14 of the same books cost?

Answer 1

Step-by-step explanation:

Ncert solutions

Grade 6

Mathematics

Chapters in NCERT Solutions - Mathematics, Class 6

Exercises in Ratio and Proportion

Question 7

Q7) Cost of 4 dozen bananas is ` 180. How many bananas can be purchased for

90?

Solution

Transcript

SOLUTION:

We know that, 1dozen=12units

Given, in rs.180, no. of bananas that can be purchased=4dozen

=4\times12=48units\=4×12=48units

In rs.1, number of bananas that can be purchased = \frac{48}{180}=\frac{4}{15}

180

48

=

15

4

from rs.90. no. of bananas that can be purchased

\frac{4}{15}\times90=24

15

4

×90=24

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Answer 2

Answer:

$128 is the answer of the question

cost of 12 books = $144

cost of 1 book = 144/12 = $12

cost of 14 books = 12 x 14 = $128