Measurement
Category : 3rd Class
Measurement
Introduction
Measurement is the elementary information about everything. The term measurement is derived from the Latin word mensura. Length, weight and volume are measured in appropriate units. SI units stands for International system for units.
Conversion of Measuring Units Length weight and Volume.
Length |
Weight |
Volume |
1 km = 1000m |
1 kg = 1000 g |
1 Kl = 1000 | |
1 km = 100m |
1 hg = 100 g |
1 hl = 100 | |
1 dam = 10 m |
1 dag = 10 g |
1 dal = 10 | |
1 dm = 0.1 m |
1 dg = 0.1 g |
1 dl = 0.1 | |
1 cm = 0.01 m |
1 cg = 0.01 g |
1 cl = 0.01 | |
1 mm = 0.001 m |
1 mg = 0.001 g |
1 ml = 0.001 | |
Conversion between Metres and Centimetres
Following are the steps for the conversion of metres into centimeters and centimetres into metres.
Step 1: Metres are converted into centimetres into centimetres multiplying by 100.
Step 2: Centimetres are converted into metres dividing by 100.
Convert 225 meters into centimetres
(a) 22500 cm (b) 4500 cm
(c) 2250 cm (d) All the above
(e) None of these
Ans. (a)
Explanation: 1 metre = 100 centimetre so, 225 metre = 22500 centimetres.
Convert 3445 centimetres into metres.
(a) 32.45m (b) 34.45 m
(c) 30.45 m (d) All the above
(e) All of these
Ans. (b)
Explanation: 3445 centimetres = \[\frac{3445}{100}\] metres = 34.45 metres.
Conversion of Kilometres and Metres
Following are the steps for the conversion of kilometres into metres.
Step 1: Convert kilometres into metres by multiplying the number of kilometres by 1,000 (1 km = 1,000 metres).
Step 2: Convert the kilometres and metres into metres by multiplying the number of kilometres by 1,000 and then add the number of metres.
Convert 6 km 340 m in centimetres.
(a) 657800cm (b) 625000cm
(b) 634000cm (d) All the above
(e) None of these
Ans. (c)
Explanation: 6 km 340 m = 6340 m = 634000 cm.
Add the following: 45 km 500 m + 569 cm + 3468 mm.
(a) 5509.158 metres (b) 45590.35 metres
(c) 46509.25 metres (d) 55509.45 metres
(e) None of these
Ans. (a)
Explanation: 45 km 500 m + 569 cm + 3468 mm = 45500m + 5.69 m + 3.468 m = 45509.158 metres
Addition of two Masses
Following are the steps for the addition of two or more masses.
Step 1: Arrange the measured masses vertically kg under kg and grams under grams.
Step 2: Add them by simple addition method starting from right.
Step 3: If carry is generated then add generated carry to the next addition.
52 kg 760 grams and 42 kg 700 grams.
(a) 85 kg 700 grams (b) 95 kg 460 grams
(c) 70 kg 200 grams (d) 115 kg 100 grams
(e) None of these
Ans. (b)
Explanation: 52 kg 760 grams + 42 kg 700 grams = 95 kg 460 grams.
Calculate the total weight of the given goods:
Goods |
Weights |
Plastic cane |
500 grams |
Tin cane |
1 kg 200 grams |
Wood box |
6 kg 700 grams |
Total weight |
? |
(a) 9 kg 860 grams (b) 10 kg 890 grams
(c) 8 kg 400 grams (d) 7 kg 200 grams
(e) None of these
Ans. (c)
Explanation: Total weight = 500 grams + 1 kg 200 grams + 6 kg 700 gm 8 kg 400 grams.
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