Question
Rs 2000 are invested at 5% per annum simple interest. If
the interest is added to the principal after every 15 years, the amount will become Rs 4,000 after -Solution
S.I for 15 years = (2000 × 5 × 15)/100 = Rs 1,500 Principal after 15 years become = Rs 2,000 + 1,500 = Rs 3,500 S.I on it = Rs (4,000 – 3,500) = Rs 500 Time = (100 × 500)/(5 × 3500) = 2(6/7) years Total time = [15+2(6/7)] = 17(6/7) years
A wire is bent to form a square whose sides are of 55 cm. If the same wire is bent to form a circle, then find the area (in cm2) of the circl...
A sold a mobile phone to B at a gain of 25% and B sold it to Cat a loss of 10%. If C paid 5625 for it, how much did A pay (in) for the phone?
If the angular diameter of the sun is 20, how far from the eye a coin of radius 4.95 cm be kept to hide the sun?
The cost of fencing a square plot @ Rs.30/m is Rs. 2520. What will be the cost of flooring the plot @ Rs. 3/ square m?
The ratio of the curved surface area and the total surface area of a cylinder is 5:7, respectively. Find the ratio of the height and radius of the cylin...
The volume of the conical tent is 1232 m3 and the area of its base is 154m2.Find the length of canvas required to build the tent. ...
The complete expense of covering the floor of a chamber at the rate of Rs 7.50 per square centimeter amounts to Rs 1875. If the length of the room measu...
The radius of a cone matches the radius of a circle with an area of 1386 cm². The slant height of the cone is twice the length o...
ABC is an equilateral triangle with sides of 42cm. Find the difference between its in-radius and circum-radius.
Which of the following two will provide more volume?
I) A cuboid of edges 6 cm, 7 cm and 8 cm
II) A cube of edge 7 cm
Relevant for Exams:
