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1
18 men can do a piece of work in 35 days. For doing the same work in 15 days, how many men are required?
36
32
42
46
2
From the following equation state which two variables are directly proportional .
3
If y varies inversely as , and the constant of variation is k = , what is y when x = 10?
Y = 4
Y = 5
4
Inverse variation can be written as
5
Which of the quantities vary inversely with each other?
Distance travelled and cab fare.
Area of a land and its cost.
Number of workers and amount of work done.
Number of workers and time taken to finish a job.
6
10 men can do a piece of work in 24 days. In how many days can 15 men finish the same work ?
12
16
24
7
It takes 5 people about 18 days to construct a room. If we employ 15 people, then how may days will they take to construct the room?
9
15
8
Which of the quantities does not vary directly with each other?
From the following equation state which variables are directly proportional and find the proportionality constant k.
x,y, 3.5
x,z 35
x,z, 3.5
y,z, 3.5
10
From the following equation state which two variables are directly proportion and determine the proportionality constant K.
,
, k = 1/3
, k = 1/4
11
Suppose that y varies inversely as x 2 and that y = 10 when . Find the equation connecting x and y.
Suppose that y varies inversely as x 2 and that y = 10 when x = .
Find the value of y when x = 3.
13
8 men can do a piece of work in 9 days. In how many days will 6 men do it?
12 days
11 days
10 days
9 days
14
If p varies directly as the square of q, and p = 20 when q = 5, find p when q = 8.
180
100
260
188
From the following equation state which two variables are directly proportional and determine the proportionality constant k .
17
18
Suppose y is inversely proportional to the square of the x , and that y =36 when x = 5 ? Find y when x = 15
44
19
If 9 girl can prepare 135 garlands in 3 hours, how many girls are needed to prepare 270 garlands in 1 hour?
54
27
35
20
A and B can do a piece of work in 12 days; B and C in 15 days; C and A in 20 days much time will A alone take to finish the work?
20 days
30 days
15 days
45 days