Assuming land to be uniformly fertile, the area of land and the yield
on it vary
(a) directly with each other.
(b) inversely with each other.
(c) neither directly nor inversely with each other.
(d) sometimes directly and sometimes inversely with each other.
Both x and y vary inversely with each other. When x is 10, y is 6,
which of the following is not a possible pair of corresponding values of
x and y?
(a) 12 and 5 (b) 15 and 4 (c) 25 and 2.4 (d) 45 and 1.3
Both u and v vary directly with each other. When u is 10, v is 15,
which of the following is not a possible pair of corresponding values of
u and v?
(a) 2 and 3 (b) 8 and 12 (c) 15 and 20 (d) 25 and 37.5
Under the condition that the temperature remains
constant, the volume of gas is inversely proportional to
its pressure. If the volume of gas is 630 cubic centimetres
at a pressure of 360 mm of mercury, then what will be
the pressure of the gas if its volume is 720 cubic
centimetres at the same temperature?
If two cardboard boxes occupy 500 cubic centimetres space, then how much space is required to keep 200 such boxes?
In a scout camp, there is food provision for 300 cadets
for 42 days. If 50 more persons join the camp, for how
many days will the provision last?
In question, state whether the statement are true (T) or false (F).
If the cost of 10 pencils is Rs 90, then the cost of 19
pencils is Rs 171.
In question, state whether the statement are true (T) or false (F).
If 5 persons can finish a job in 10 days then one person
will finish it in 2 days
In question, state whether the statement are true (T) or false (F).
When two quantities x and y are in inverse proportion, then x/y is a constant.
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