A rectangular portion of an airport runway was getting repaired for which an estimate was
made on the basis of a rate R per square unit.
But while doing the work, the length of the
portion got increased by 10% and the breadth
by 8%. Over and above this, there was an in-
crease in the cost of the repair work to the
extent of 15%. What was the overall percent-
age increase in the cost of repair over the es-
timate ?
​

Ithinks its false. tell me if im wrong

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant. 

The answer to the question is d