Let the length of the cube be ‘a’ cm According to the question, 4a2 = 100 => a2 = 25 => a = 5 Therefore, length of the cuboid = l = 1.40 × 5 = 7 cm Breadth of the cuboid = b = 7 – 6 = 1 cm Height of the cuboid = h = 1/0.8 = 1.25 cm Therefore, total surface area of the cuboid = 2(lb + bh + lh) = 2 × {(7 × 1) + (1 × 1.25) + (7 × 1.25)} = 34 cm2
Simple interest received at the rate of 15% p.a. for 2 years on a principal amount of Rs. 9000 is twice of the simple interest received at 10% p.a. for ...
A certain sum gives the interest equals to 3/5th of the sum when invested for 5 years at simple interest. Find the rate of simple interest.
Rs. P invested at R% p.a. gives simple interest and compound interest (compounded annually) of Rs. 750 and Rs. 900 respectively at the end of 2 years. F...
A certain sum of money becomes 4000 in 6 years and Rs. 5400 in 10 years at any certain rate of simple interest. Find the principal amount.
A person invested some amount at the rate of 12% simple interest and a certain amount at the rate of 10% simple interest. He received yearly interest of...
Rs. 9,000 is invested in scheme ‘A’ offering simple interest of 20% p.a. and Rs. 6,500 in scheme ‘B’ offering simple interest of 8% p.a. What is...
A borrowed Rs. 6000 from B for his business. How much amount A will return to B at the end of 40 months such that the sum was borrowed at simple interes...
The simple interest received on a certain sum is Rs. 400 less than the sum invested. If the sum was invested at 15% p.a. for 5 years, then find the simp...
A man invested Rs. 'B' at simple interest of 18% and Rs. 'B + 4000' at simple interest of 14% p.a., for 4 years each. If the interest earned from both i...
Rs. 'x' is invested in scheme 'A' offering simple interest such that interest earned after 5 years is Rs. 600. If the amount received is further investe...
