Question
A invests half of the amount invested by B. B left after
4 months. C joins them with the capital of X Rs in a month after B had withdrawn from the business. At the end of the year A and C share same amount of profit. If capital of B is Rs.2200 then which of the following can be the capital of the C? i) 2200 ii) 2640 iii) 4400 iv) 6600 v) 3200Solution
B invested = Rs. 2200 So, A invested = ½ of 2200 = Rs.1100 Let C invested Rs.x for T time. So ratio of profit of A, B & C = 1100 × 12 : 2200 × 4 : x × T Now As profit of A & C are equal, 1100 × 12 = x × T As T can be less than 8 months so it can be any number from 1 to 7. For T=1, x = 13200 For T=2, x = 6600 For T=3, x = 4400 For T=4, x = 3300 For T=5, x = 2640 For T=6, x = 2200 For T=7, x = 1885.71 Hence answer is (i), (ii), (iii) and (iv).
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...