A is twice as good a work man as B and together they finish the work in 14 days. In how many days A alone can finish the work?
A). 20
B). 21
C). 22
D). 23
21
WC = 2:12x + x = 1/14 => x = 1/422x = 1/21A can do the work in 21 days.
Join Telegram Group
1. A, B and C are employed to do a piece of work for Ra. 5,290. A and B together are supposed to do $\frac{19}{23}$ of the work and B and C together $\frac{8}{23}$ of the work. Then A should be paid
2. Pratibha is thrices as efficient as Sonia and is therefore able to finish a piece of work in 60 days less than Sonia. Pratibha and Sonia can individually complete the work respectively in
3. Three workers working all days can do a work in 10 days. But one of them having other employment can work only half time. In how many days the work can be finished?
4. If the production of a factory grows at a rate of 8% p.a., what will be its production for the year 2006 if its production in 2004 was 60 lakh tonnes (Rounded off to two digits after decimal) ?
5. A is twice as good as B and together they finish a piece of work in 48 days. What is the number of days taken by A alone to finish the work?
6. A and B can do a work in 45 days and 40 days respectively. They began the work together but A left after some time and B completed the remaining work in 23 days. After how many days of the start of the work did A leave ?
7. Mandar works 3 times as fast as Samarth. If Samarth can complete a job alone in 28 days, then in how many days can they together finish the job?
8. 40 men can complete a work in 18 days. Eight days after they started working together, 10 more men Joined them . How many days will they now take to complete the remaining work ?
9. A contractor undertook to finish a certain work in 124 days and employed 120 men . After 64 days , he found that he had already done $\frac{2}{3}$ of the work. How many men can be dis- charged now so that the work may finish in time ?
10. The ratio of efficiency of A is to C is 5:3. The ratio of number of days taken by B is to C is 2:3. A takes 6 days less than C, when A and C completes the work individually. B and C started the work a
History
Geography
Political Science
Chemistry
Biology
Physics
Enviornmental Science
Economics
Books & Authors
Computer Basics
Financial Awareness
International Organisations
Famous Personalities
Spoting Errors
Sentence Improvement
Fill In the Blanks
Antonyms
Synonyms
Spellings
Idioms and Phrases
Voice (Active/ Passive)
Naration (Direct/ Indirect)
Reading Comprehension
Cloze Test
Mensuration
Simplification
Profit & Loss
Trigonometry
Percentage
Ratio & Proportion
Time & Work
Average
Simple & Compound Interest
Number System
Discount
Time & Distance
Surds and Indices
Mixture & Alligation
LCM & HCF
Co-Ordinate Geometry
Pipe & Cistern
Probability
Boat & Streams
Problem on Age
Permutation & Combination
Problem on Trains