Direct And Inve...

If x : y = 3 : 4 and 4 : x = 2 : 3, then the value of y is

If x varies inversely as y, and x = 15 when y = 9, then what is the value of y when x = 25?

If x varies directly as y², and x = 6 when y = 8, then what is the value of x when y is 24?

If , then the value of x is

x and y vary in inverse proportion. When x is 16, y is 4. Which of the following is a possible pair of corresponding values of x and y?

Which of the following statements is/are INCORRECT?

If A : B = 4 : 5 and B : C = 6 : 7, then C : A is equal to

Match the following:

When x = 3, 18, 54, …, y = 6, 36, 108, ... Then, x and y are

If two quantities x and y vary directly with each other, then

If 10 men can do a piece of work in 12 days, then how long will 12 men take to do the same work?

A salesman receives a commission of Rs. 85.00 on the sales of Rs. 1200. The commission he will get on the sales of Rs. 600 is

In a class, on an average, 6 chocolates are shared in a group of 8 students. How many students are present in the class if 30 chocolates are shared?

In a school camp, there is sufficient food for 110 students for 24 days. If 50 students leave the camp, how long would the food last?

A person has enough money to buy 60 curtains worth Rs. 660 each. If each curtain were to cost Rs. 60 more, then the number of curtains he would be able to buy with that amount of money would be

A painter is paid Rs. 600 for 15 days of work. If he receives Rs. 25,000, then for how many days does he work?

Varun enlarged the picture of a lion 2000 times for his project to maintain its length of 250 cm. What was the actual length of the picture?

Priya has enough money to buy 80 bed-sheets worth Rs. 450 each. How many bed-sheets can she buy with the same amount of money if she gets Rs. 150 off on each bed-sheet?

A cistern has two taps which fill it in 15 min and 18 min, respectively. There is also a waste pipe in the cistern. When all the pipes are opened, the empty cistern is full in 25 min. How long will the waste pipe take to empty a full cistern?

In 3 days, Neeraj uses of water to irrigate his entire field. In how many days can he utilise of water?

State 'T' for true and 'F' for false and choose the correct option with the help of the table given below.

(i) If p and q are in inverse proportion, then (p + 1) and (q + 1) are in direct proportion.
(ii) If x and y are in direct proportion, then (x - 2) and (y - 2) are also in direct proportion.
(iii) Two quantities x and y are said to be vary inversely with each other if = k, where k is a positive constant.
(iv) When distance is kept fixed, then speed varies inversely with time.

Fill in the blanks with the help of the table given below.

(i) The area and the length of a rectangle vary ___A____ with each other.
(ii) If two quantities x and y vary directly with each other, then the ___B____ of their corresponding value remains constant.
(iii) Given p and q are in direct proportion, if p is doubled, then the value of q will be ____C_____.

Match the following:

A labourer is paid Rs. 140.50 for 5 days.

(i) What amount will he get for 25 days?
(ii) For how many days will he be working to get Rs. 4215?

Which of the following tables show(s) direct proportion?

(i)