EASY
Earn 100

If 4 men or 8 women can do a piece of work in 15 days, in how many days can 6 men and 12 women do the same piece of work?

85.71% studentsanswered this correctly

Important Questions on Ratio and Proportion

EASY
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule
Deepa and Seema together do a work in 6 days. Deepa can complete the same work alone in 9 days. In how many days will Seema complete the work alone ?
EASY
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule

G is twice as fast as S in doing work. If G can do a work in 30 days less than S, how many days will they take to complete the work together? 

1. 25
2. 20
3. 22
4.15 

MEDIUM
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule
10 persons can build a wall in 8 days. How may persons can build the wall in half day ?
MEDIUM
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule
A,B, and C together complete a work in 2 days. If A and B need 2.4 days to complete the work, while B and C together complete the work in 4 days then in how many days will B alone do the work?
MEDIUM
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule
A group of soldiers can completely destroy an enemy camp in 5 days. However, 9 soldiers were injured. The remaining soldiers destroyed the camp in 8 days. Calculate the actual number of soldiers who destroyed the camp?
EASY
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule
Ratio of days required by A and B to complete some work is 3:5. They require 558 days to complete the work. In how many days can A alone complete twice the work?
MEDIUM
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule
A and B can complete a piece of work in 6 and 12 days separately. If they work jointly, how long will they take to complete this piece of work ?
MEDIUM
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule
9800 J of energy was spent to raise a mass of 70 kg. The mass was raised to a height of _____?
EASY
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule
A is twice as good a workman as B and together, they finish a piece of work in 14 days. The number of days taken by A alone to finish the work is:
HARD
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule
A and B can do a job together in 12 days. A is 2 times as efficient as B. In how many days can B alone complete the work?
EASY
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule
Working 9 hours a day, Manish can read a book in 16 days. How many hours a day should he work so as to finish the same work in 24 days?
MEDIUM
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule
40 persons take 6 days to complete a certain task working 10 hours a day. How many hours a day will be sufficient for 30 persons to complete the same task in 10 days?
EASY
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule
X and Y can complete a work in 5 days. Y and Z can complete the same work in 6 days. Z and X can complete the same work in  152  days. In How many days will  X, Y and Z toogether complete the work?
EASY
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule
20 dogs can eat 20 hens in 10 days. In how many days 40 dogs eat 40 such hens?
HARD
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule
Indira and Chandra can do a task separately in 20 days and 80 days respectively. Indra begins the work and works for 3 days and then takes a leave for five days during those days Chandra works. This process continues till the end of the work. How many days are taken to complete the work? 
HARD
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule
X can complete 57th part of a work in 10 days and Y can complete 34th part of the same work in 9 days. In how many days will both complete 1321st part of the total work?
EASY
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule
X can complete a work in 27 days, and Y can do the same work in half of the time taken by X. They are working together, what part of the same work they can complete in a day?
EASY
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule

Ten people can do a work in 30 days. In how many days, can 15 people complete double the work - 

1.40

2. 25

3. 20

4. 45 

EASY
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule
A works twice as fast as B . If B can complete a piece of work independently in 12 days, then what will be the number of days taken by A and B together to finish the work?
MEDIUM
Quantitative Abilities>Arithmetic>Ratio and Proportion>Chain Rule
A contractor takes a contract to complete a road in 60 days and employed 70 labourers. After 25 days, he found that one fourth of work is completed. How many more labours he required to complete the remaining work in time?