Inverse Variation

Q.

A and B undertake to do a piece of work for Rs. 200. A alone can do it in 6 days and B in 8 days. With the help of C they finish it in 3 days. How much is paid to C?

1. Rs.25
   

2. Rs. 30

3. Rs. 37

4. Rs. 29

Q.

Ram has to reach office in 2 hours. He travels 2 hours at a speed of 80 kmph to reach office on time. Now, he is already late by 1 hour 5 minutes. Calculate the speed with which he has to travel, to reach office on time.

1. 140 kmph

2. 120 kmph

3. 150 kmph

4. 175 kmph

Q.

175 men can dig a canal 3150 m long in 36 days. How many men are required to dig a canal 3900 m long in 24 days?

1. 256

2. 225

3. 325

4. 384

Q.

$\begin{array}{cccccc}\text{Quantity(In Kg)/Price}& \text{1}& \text{2}& \text{3}& \text{4}& \text{5}\\ \text{Gummy bear}& \text{20}& \text{40}& \text{60}& \text{80}& \text{100}\\ \text{Candies}& \text{30}& \text{60}& \text{90}& \text{120}& \text{150}\\ \text{Chocolates}& \text{50}& \text{100}& \text{150}& \text{200}& \text{250}\end{array}$

According to the information given what is the total price of 6 kg of all the items?

1. 550

2. 600

3. 500

4. 650

Q.

Two quantities x and y are said to vary in inverse proportion, if there exists a relation of the type xy = k between them, k being a constant.

1. True

2. False

Q.

X and Y can do a piece of work in 72 days. Y and Z can do it in 120 days. X and Z can do it in 90 days. How many days does it take if all the three can work together?

1. 100 days
   

2. 150 days

3. 60 days

4. 80 days

Q.

Seema weaves 25 baskets in 35 days. In how many days will she weave 110 baskets?

1. 154 days

2. None of these

3. 152 days

4. 139 days

Q.

$$\begin{array}{ccccc}X& 100& 200& 300& 400\\ Y& & 30& 20& 15\end{array}$$

Which number fills the blank cell?

1. 60

2. 70

3. 80

4. 90

Q.

Three people A, B and C can do a job alone in 10 days, 12 days and 15 days respectively. In how many days they can finish the job working together?

1. 4 days

2. $\frac{7}{2}$ days

3. 6 days

4. $2\frac{1}{3}$ days

Q.

A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 2 days B had to leave and A alone completed the remaining work. The total time taken for the work to be completed was

1. 12 days

2. 10 days

3. 15 days

4. 8 days