Question
The boys and girls in a college are in the ratio 3:2. If
15% of the boys and 25% of the girls are adults, then adults are approximately how much % less than the non-adults in the college?Solution
Let, the total number of boys and girls are 300 and 200 respectively. ∴ Total no. of students = 500 As per the question, Total no. of adult students = 15% of 300 + 25% of 200 = 45 +50=95 ∴Total no. of non adult students = 500 - 95 = 405 ∴ Reqd. % = ((405-95))/405 × 100 = 76.54%
In the given Figure, Find  angle BCD. If AB is a diameter & AB is parallel to CD.
What will be circumradius of a right angle triangle whose base is 20cm & height is 21cm ?
If y = 5x + c passes through point A(5, 2), what is the value of c?
...If in a right angle triangle ABC, Angle B is a right angle. AB = 8 cm, BC= 15cm if BD is perpendicular to AC find the length of BD?Â
The perimeter of a rectangle is 100 m, and its diagonal is 41 m. Find the area of the rectangle.
Find the area of triangle having sides 20 m, 21 m, and 29 m.
The radius of a circle is 25 cm, and the length of the chord is 14 cm. Find the distance between the chord and the centre of the circle. Â
The length of the each side of an equilateral triangle is 28√3. The area of incircle, (cm 2 ) is
The ratio of curved surface area of a right circular cylinder to the total area of its two bases is 2 : 1. If the total surface area of cylinder is 2310...
Relevant for Exams:
