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Total weight of 150 occupants = 150 × 50.9 = 7635 Number of senior citizen occupants = 10/100 × 150 = 15 Average weight of senior citizen occuoants = 68 × 15 = 1020 Number of occupants less than 18 years = 40/100 × 150 = 60 Total weight = 60 × 32 = 1920 kg Average weight of remaining persons = (7635 - 1020 - 1920)/(150 - 15 - 60) = 4695/75 = 62.6
A salesman is allowed 12% commission on the total sales by him and a bonus of 1% on the sales over Rs. 10000. If the total earnings of a salesman is Rs....
Arjun sets aside 20% of his monthly earnings. If his monthly expenses rise by 45% while his monthly savings remain constant, determine the % increase in...
In the Reebok factory, there are two units of workers, I and II, with a strength ratio of 2:1. The ratio of male to female in Unit I is 3:1, and in Unit...
A man spent 50% of his income in May. If his savings is increased by 30% in June and becomes Rs. 9100, then find the income of man in May.
A book is listed at Rs. 2,400 and the discount offered is 10%. What additional discount must be given to bring the net selling price Rs. 1,800?
In a zoo, 40% of the people are males. 50% of the remaining are females and the remaining 570 are children’s. Find the total number of people in a zoo...
A student gets an aggregate of 60% marks in five subjects in the ratio 10 : 9 : 8 : 7 : 6. If the passing marks are 45% of the maximum marks and each s...
A trader sells pulses at a 28% profit and uses weights 20% less than the actual measure. Find his gain percentage.
In 2020, Maran earned Rs. 16,500, spending 40% of it and saving the remainder. The following year, his earnings increased by 20%, and his expenditures a...
