Question
Divakar spends 30% of his salary on house rent, 20% of
the remaining amount on shopping, 25% of the remaining on education fees, and the rest is divided between transport and insurance in a 2:1 ratio. If his house rent expenditure increases by 20%, resulting in an increase of Rs. 3600 in the amount spent on house rent, what is the amount spent on insurance?Solution
House rent = x x * 120/100 – x = 3600 x = 3600 * 5 x = 18000 Salary = 100/30 * 18000 = 60000 Amount spends on house rent = 18000 Remaining amount = 60000 – 18000 = 42000 Shopping = 42000 * 20/100 = 8400 Remaining = 42000 – 8400 = 33600 Education fee = 33600 * 25/100 = 8400 Remaining amount = 33600 – 8400 = 25200 Insurance amount = 1/3 * 25200 = Rs.8400
In a regular polygon, the ratio of the exterior angle to the interior angle is 4:5. Find the interior angle of the polygon.
The ratio of the angles ∠A and ∠B of a non-square rhombus ABCD is 7:5, then the value of the ∠C is
In the figure P is a point which is 12 cm away from the centre of the circle O. A line drawn from P point cuts circle at point A and B respectively. If...
A and B are the centres of two circles with radii 11 cm and 6 cm respectively. A common tangent touches these circles at P & Q respectively. If AB =...
In ΔABC, PQ is parallel to BC If AP: PB= 2:5 and AQ= 2 cm, AC is equal to?
A regular polygon has an interior angle of 144°. How many sides does the polygon have?
If in a ΔABC, the external angle bisector of angle A, meets BC when extended at a point D, BD = 6cm , BC = 4 cm then what is AB:AC ?
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...
If in a ΔABC, the external angle bisector of angle A, meets BC when extended at a point D, BD = 5cm , BC = 3 cm then what is AB:AC ?
- In a ΔPQR, PS is the angle bisector of ∠RPQ. If PQ = 12 cm, RP = 21 cm and QR = 22 cm. Find the length of QS.
