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Let the total work = L.C.M of 35 and 40 = 280 units Then, efficiency of 'A' = 280 ÷ 35 = 8 units/hour Efficiency of 'B' = 280 ÷ 40 = 7 units/hour 60% of the work = 280 X 0.6 = 168 units Time taken by 'A' and 'B' working together to complete 60% of the work = 168 ÷ (7 + 8) = 11.2 hours
A man spent 38% of his income in May. If his savings is increased by 20% in June and becomes Rs. 14880, then find the income of man in May.
The total strength of school A is 40% more than that of school B. In school A and B, out of total number of students, 25% and 30% respectively are girls...
The marks obtained by A is 25% more than B, and the marks obtained by C is 150 more than the difference of the marks obtained by A and B. If C obtained ...
An original figure is first enhanced by 25% and then reduced by 10%. What is the final overall percentage change?
In an exam, Vaibhav scored 180 marks but fell short by 5% to pass. If he had scored 54 more marks, he would have passed by 4%. What is the passing perce...
The income of ‘A’ increases by 33% every year. If the present income of ‘A’ is Rs. 35378 and his expenditure 2 years ago from now was Rs. 14580,...
In a city, the number of persons travelling by bike is 70% the number of persons travelling by metro. The number of persons travelling on foot is 50% th...
Person P allocated 65% of the money he had between X and Y in a ratio of 6:7. Both Y and X invested the amounts they received in ...
In a village election between two candidates, the winner secured 65% of the total votes cast and won by a majority of 9000 votes. How many votes did the...
In an exam, Asha scored 40% marks and failed by 20 marks while Meera scored 80% marks and scored 80 marks more than the passing marks. Find out the pass...
