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Let the total work done to plough field ‘A’ = 150 units (LCM of 30 and 50) Then, efficiency of a buffalo = (150/30) = 5 units/day Efficiency of a bull = (150/50) = 3 units/day Total work required to plough field ‘B’ = 150 × 1.1 = 165 units Combined efficiency of 2 bulls and a buffalo = 3 × 2 + 5 = 11 units So, number of days required to plough field ‘B’ = 165/11 = 15 days
A no. is multiplied by 35 instead of being multiplied by 53. What % is the result of the required correct value?
Vodafone charges a fixed rental of Rs. 450 per month. It allows 200 calls free per month. Each call is charged at 1.8 when the number of calls exceeds 2...
The maximum marks in an examination was 500. Shiva got 25% more than Parul, Parul got 10% more than Tashu. If Shiva got 275 marks. What percentage of fu...
Neha goes to a bookstore with a certain amount of money. She can buy 60 notebooks or 20 novels with the money she has. However, she saves 15% of the amo...
A businessman's earning increase by 25%in one year but decreases by 4%in the next. Going by this pattern, after 5 years, his total earnings would be Rs....
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 an examination, the passing percentage is 35%. 'P' scores 8% less than the passing marks, and 'Q' scores 25% less than 'P'. What percentage less (up ...
P spends 27% of his salary on transportation, 30% on food, 18% on children’s education and 16% on medical. He deposits the remaining amount of Rs....
In an election, two candidates participated. 20% voters did not cast their votes, out of which 600 votes declared invalid and the winner get 75% of the ...
A money lender finds that due to a fall in the annual rate of interest from 10% to 8(3/4)%, his year's income diminishes by ₹84.50. Find his capital.