Question
Mr. Shiva invested equal amount of money in two private
firms which gives 15% simple interest per annum for 3.5 years and 5 years respectively. If the difference in their interests is Rs. 315. The amount invested by Mr. Shiva in each firm is:Solution
Let’s assume he invested Rs. x each in both firms. We know that Simple interest = (P × R × T)/100 Where, P = principal, R = % rate of interest, T = time in years For both investments, P = x, R = 15 T = 3.5 for first investment and T = 5 for second investment. According to question, => [(x × 15 × 5)/100] - [ (x × 15 × 3.5)/100] = 315 => [(30x - 21x )/40] = 315 ⇒ x = 315 × (40/9) = 1400 ∴ He invested Rs. 1400 in each firm.
The perimeter of a rectangle is 50% more than perimeter of a square of side 25 cm. If the length of rectangle is 100% more than side of square then fin...
If the volume and radius of a cylinder is 4620 cm3 and 14 cm respectively then find the height of the cylinder?
2[sin x – cos x]4 + 6[sin x + cos x]2 + 5[sin6 x + cos6 x]= ?
If (3/4)th of a number exceeds (1/2)th of (x + 8) by 10, then find the value of ‘x’.
A pipe fills a cubical tank at the rate of 128 m3 per minute in 32 minutes. If a cylindrical tank having height same as the side of a cubical...
The lateral surface area of a cube is 100 cm2 . The length of a cuboid is 40% more than the side of the cube. The breadth of the cuboid is 6...
A rectangular swimming pool is 40 meters long and 25 meters wide. If the pool is being filled at a rate of 10 cubic meters per minute, how long will it ...
Calculate the perimeter of a square when the area of a circle that circumscribes it is 486 square centimeters. (Assume π = 3 for calculations.)
The side of a square is equal to the diameter of a circle. The area of a square is 196 sq cm. what is the area of the circle?
Relevant for Exams:
