Perimeter of the square = 4 x 20 = 80 cm Perimeter of the rectangle = 80 x (200/100) = 160 cm Length of the rectangle = 20 x (300/100) = 60 cm Let the breadth of the rectangle be b cm. => 2 x (60 + b) = 160 => b = 80 – 60 => b = 20 cm Required difference = (60 x 20) - (20 x 20) = 800
A candidate who gets 22% marks fails by 10 marks but another candidate who gets 40% marks gets 14% more than the passing marks. Find the maximum marks.
In a bio gas plant the population of yeast bacteria increases at a rate of 19% per annum but there is an additional annual increase of 1% in population ...
A person spends 25% of their income on rent, 20% on food, 15% on transportation, and 10% on miscellaneous expenses. They donate one-third of the remaini...
The respective ratio of monthly income of A to monthly income of B is 12:13, and A’s saving is (100/19)% more than B’s saving. Find the expenditure ...
A spent 25% of his monthly income on study and 60% of the remaining on rent. If amount spent on rent is Rs. 945, then find the amount spent on study
A product, coffee beans, was marked up by 40% above the cost price and sold at a discount of ____%. The profit earned by the retailer is ____%. The valu...
A man spends 22% and 14% of his monthly salary on rent and transportation, respectively. Out of the remaining money, he spends 32% on food and 47% on en...
A spent 23% of his monthly income on study and 44% of the remaining on rent. If amount spent on rent is Rs. 1694, then find the amount spent on study
The marks scored by a boy in three subjects are in the ratio 3 : 5 : 6. Boy scored an overall aggregate of 70% in the exam. If the maximum marks in each...
After increase in the price of coffee by 20 %, a person is able to buy 4 kg less for Rs. 1,440. Find the original and increased price of the coffee per ...
