Question

How many kilograms are equal to one quintal?
A. 10
B. 100
C. 1000
D. 10000

Answer 1

In order to find the solution of the given question, let us first recall the definition and unit of the basic physical quantity mass. We know that the basic unit of mass is expressed in terms of kilogram (kg).

Complete answer:
Mass of an object or a body is defined as its physical characteristic, or the estimate of its resistance to acceleration when a force is applied.
We see that all the units of measurement for any object is categorised under the International system of units (SI) and Centimetre – gram – Second system (CGS). According to the International system of unit’s standards, kilogram is the basic unit of mass.
Now,
1 gram = 10 milligrams
1 kilograms = 1000 grams = $1000 \times 10$ milligrams = 10000 milligrams
So, 1 quintal = 100 kilograms = $100 \times 1000$ grams = 100000 grams = $100000 \times 10$ milligrams = 1000000 milligrams = 100 kilograms.
$\therefore 1{\text{quintal}} = 100{\text{kilograms}}$
Thus, 100 kilograms are equal to one quintal.

Hence, option (B) is the correct answer.

Note:
For the conversion of standard unit of mass it is very necessary to memorize the relationship between the different units of masses, such as:
1000 grams = 1 kg
Two 500 grams = 1 kg
Five 200 grams = 1 kg
Ten 100 grams = 1 kg
There are some higher units such as quintal which we studied just now, and metric ton for measuring the mass of heavier things.
1 quintal = 100 kilogram
1 metric ton = 1000 kilogram
1 metric ton = 10 quintal
Students need to be focussed while doing the conversions in order to avoid the basic errors.