Reena weighed 63kg.She reduced her weight in the ratio 9:8.Find her weight.
Answers
So 63:x=9:8
63/x = 9/8
Cross multiply it . 63×8 =9x
504=9x
504÷9 =x
56=x
Therefore her new weight is 56 kg.
Answer:
Concept:
Weight is the measure of how heavy an object is. Weight is measured in standard customary units.
Find:
We have Find her weight.
Given:
Reena weighed 63kg.She reduced her weight in the ratio 9:8.
Step-by-step explanation:
It is the measure of the force of gravity acting on a body.
The formula for weight is given by:
W = mg
As weight is a force its SI unit is also the same as that of force, SI unit of weight is Newton (N). Looking at the expression of weight we see that it depends on mass and the acceleration due to gravity, the mass may not change but the acceleration due to gravity does change from place to place. To understand this concept let's take this example,
Shape of the earth is not completely spherical, but an oblate spheroid, therefore a person standing at the equator is far away from the center of the earth than a person standing at the north pole, as acceleration due to gravity is proportional to the inverse of the square of the distance between two objects, a person standing at the north pole would experience more weight as he is closer to the center of the earth than a person standing at the equator.
Reena weighed 63 kg
Reduced her weight in the ratio 9:8
Let her new weight be X.
Then,
63:X = 9:8
cross multiplication
= 63×8 = 9 x X
= 504 = 9x
= 504 ÷9 = x
= 56 = x
=x=56 kg
Hence, the new weight is 56 kg.
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