Question
Find X's monthly income if the combined income of X and
Y amounts to Rs. 36,000, and both X and Y spend 75% and 80% of their incomes, respectively, with their savings being equal.Solution
We can say that, Let monthly income of X and Y be Rs.'a' and Rs.'b' respectively. Savings of X and Y is 25% and 20% respectively. ATQ, 0.25a = 0.2b (a/b) = (0.2/0.25) = 0.8 a = 0.8b And, a + b = 36000 a + (a/0.8) = 36000 a + 1.25a = 36000 2.25a = 36000 a = Rs.16000
In the given figure. ABCDEF is a regular hexagon whose side is 6 cm. APF, QAB, DCR and DES are equilateral triangles. What is the area (in cm2
In the given figure. ‘O' is the centre of the circle and ∠BCA = 50°. The value of ∠BDA is:
Determine the difference between an angle and its complementary angle, given that the angle is two-thirds of its complement.
- One of the angles of a quadrilateral is 80º. If ratio of remaining angles of quadrilateral is 6:3:5 respectively, then find the smallest angle of quadrila...
- Length of a chord in a circle of radius 'r' cm, is 16 cm and distance between chord and centre of the circle is 15 cm. Find the value of (5r - 19).
- If two circles of radii 'R' and 'r' cm intersect each other externally at one point, then which of the following is true?
Angles of a triangle are in the ratio 5 : 6 : 7. Find the difference between the largest and smallest angle of the triangle.
If the ratio of side of a ∆ is 3:4:5, and a ┴ from opposite vertex drawn to the biggest sides at D, if the length of biggest side is 10 then find ra...
What will be inradius of a right angle triangle whose base is 13 cm & height is 84 cm ?
Relevant for Exams:
