Question
The area of a square is 576 cm2 which is 172
cm2 less than that of a rectangle. Find the perimeter of the rectangle if the length of the rectangle is 10 cm more than the length of each side of the square.Solution
Area of the square = 576 cm2 Length of each side of the square = √576 = 24 cm Area of the rectangle = 576 + 172 = 748 cm2 Length of the rectangle = 10 + 24 = 34 cm So, area of rectangle = length × breadth = 34 × breadth = 748 cm2 So, breadth of the rectangle = 748/34 = 22 cm Therefore, perimeter of the rectangle = 2 × (length +breadth) = 2 × (22 + 34) = 112 cm
The value of A’s car is depreciating by 45% every year whereas the value of his house is appreciating by 10% each year as compared to the previous yea...
Suman spends 60% of her salary and gets an additional allowance of 15% every month. If her annual savings are Rs. 193200, find her monthly allowance.
Two numbers are less than a third number by 20% and 24% respectively. Find the percent by which the second number is less than the first.
The total number of students in a college is 13,200. If the number of male students increases by 30% and the number of female students increases by 20% ...
From her overall earnings, Veena allocates Rs. 8000 to SIP. From the remaining salary, she allocates 10% to vegetables and 7.5% to transportation, which...
- The sum of two numbers, x and y, is 640. If x is reduced by 8% and y is raised by 12%, the two values become equal. Determine the value of y.
Rajeev spends 30% of his monthly income on cloths and food and 20% of remaining on rent and saves the remaining amount. If he saves Rs 17920 per month, ...
A jacket originally priced at ₹3,000 is on sale for 20% off. If a 5% sales tax is applied after the discount, what is the final price of the jacket?
In an exam, Sunil scored 46% marks and failed by 65 marks whereas Anil scored 66% marks in the same exam and scored 45 marks more than the passing marks...
The salary of X is 50% more than Y, and the allowance of Z is 200 more than the difference of salaries of X and Y. If Z's allowance is 350, then find X'...
Relevant for Exams:
