Question
If the perimeter of a square is 88 cm and the
circumference of a circle 88cm, then which figure has larger area and by how much?Solution
Perimeter of Square = 88cm 4 × side = 88 Side = 22cm Area of Square = (side)² = (22)² = 484 cm² Now, Circumference of the circle = 88cm 2πr = 88 2 × 22/7 × r = 88 r = 14cm Area of Circle = πr² = 22/7 × 14 × 14 = 616cm² Required Difference = 616 – 484 = 132cm²
Find the fourth proportion of 12.5, 17.5 and 27 respectively.
The square of a number is reduced by 26 times the number, and then 169 is added to the result. If the final value is 0, what is the number?
Determine the number of factors of 360.
Two students appeared in an exam and one secured 13 marks more than the other. If marks of student who got more marks is 60% of the sum of the marks of ...
- Ram has Rs. 1000 in denomination of Rs. 2, Rs. 5 and Rs. 10 only. If the ratio of number of coins of Rs. 2, Rs. 5 and Rs. 10 is 5:3:10 respectively. Find t...
The number of boys in a class is five times the number of girls. Which of the following numbers cannot represent the total number of children in the class?
A total of Rs. 1,400 was meant to be distributed between A and B in the ratio of 3:7. However, due to an error, it was instead divided in the ratio of 3...
Four years ago from now age of 'A' was 16 years. 'B' is 8 years younger than 'A'. After how many years from now, ratio of age of 'A' and 'B' will be 7:5...
Two inlet pipes 'A' and 'B' can fill an empty tank in 48 minutes and 80 minutes, respectively. Another outlet pipe 'C' can empty the tank in 120 minutes...
Vikas invested Rs. 12,000 at an annual compound interest rate of 30%, with the interest being compounded every 10 months. How much interest did Vikas ea...
Relevant for Exams:
