Question

State whether the given statements are true (T) or false (F)
1. 27 sq. cm : 57sq. cm. = 18cm : 38cm

2. 5kg : 7.5kg = Rs 7.50 : Rs 5

3. 20g : 100g = 1metre : 500cm

4. 12 hours : 30 hours = 8km : 20km

5. The ratio of 10kg to 100kg is 1:10

6. The ratio of 150cm to 1metre is 1:1.5.

7. 25kg : 20g = 50kg : 40g

8. The ratio of 1 hour to one day is 1:1.

Answer 1

Answer:

Step-by-step explanation:

Its a ratio and proportion question

equate first variable and second variables

A/b=C/d

or A X d= C X b

Given 27 sq. cm : 57sq. cm. = 18cm : 38cm

27/57=18/38

or

27 X 38=57 X 18

1026=1026

Also check the units

cm²/cm²=cm/cm

Hence cm² X cm=cm² X cm

cm³=cm³

True

Repeat process for all

Answer 2

Answer:

Your answer is here:-

1. True
2. False
3. True(20×500=100×100)
4. True
5. True
6. False
7. True
8. False

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