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.
If x and y are inversely proportional then _____ = k where k is positive constant.
Amrita takes 18 hours to travel 720 kilometres. Time taken by her to travel 360 kilometres is _______.
Which of the following is in direct proportion?
(a) One side of a cuboid and its volume.
(b) Speed of a vehicle and the distance travelled in a
fixed time interval.
(c) Change in weight and height among individuals.
(d) Number of pipes to fill a tank and the time required
to fill the same tank.
A car covers a distance in 40 minutes with an average
speed of 60 km per hour. The average speed to cover the
same distance in 30 minutes is
(a) 80 km/h (b) 45/2 km/h (c) 70 km/h (d) 45 km/
If x and y are directly proportional and when x = 13,
y = 39, which of the following is not a possible pair of
corresponding values of x and y ?
(a) 1 and 3 (b) 17 and 51
(c) 30 and 10 (d) 6 and 18
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