Start learning 50% faster. Sign in now
Let the radius and height of the cylinder be r and h cm respectively. ∴ h = 1.30r Total surface area of the cylinder = 17710= 2πr(h + r) ∴ 17710 = 2πr(1.3r + r) = 2πr(2.3r) = 4.6πr2 ∴ 17710= (9.2/2) × (22/7) × r2 = 17710x 7 x 2/22 x 9.2 ∴ r2 = 1225 ∴ r = 35 and h = 45.5 Amount of water displaced = Volume of the right circular cylinder = πr2h = (22/7) × (35)2× (45.5) = 175175 cm³
Mr. Karan invested his funds in 3 different projects 'P', 'Q', and 'R' in the ratio 7:6:5, respectively. The rates of interest offered by projects 'P', ...
The difference between the compound interest, compounded annually and simple interest on Rs. ‘P’ at the rate of 25% p.a. for 2 years, is Rs. 120. If...
A man invested certain sum at simple interest of r% p.a. such that it amounts to 124% of itself in 10 years. Find the interest earned when Rs. 10000 is ...
A person borrowed Rs. 50,000 at a rate of 12% per annum for one year. He then lent it out as two separate loans to D and E. He lent Rs. 20,000 to D at 2...
Viraj invested Rs. 3500 at 20% p.a. simple interest for 3 years. After 3 years, he invested the amount received by him at the 20% p.a. compound interest...
The simple interest received after 5 years on Rs. (x + 500) at the rate of 20% p.a. is Rs. (2x – 1500). The amount received on Rs. 3x when investe...
Rs. 8800 is invested in scheme ‘A’ for a year at simple interest of 20% p.a. The interest received from scheme ‘A’ is reinvested for 2 years in ...
A person 'P' invests ₹24,000 at a simple interest rate of 15% per annum for 2 years, while Jay invests the same amount, ₹24,0...
Sameer invested Rs. (R + 1000) at simple interest of 20% p.a. for 3 years. Ajeet invested Rs. (R - 4000) at compound interest of 20% p.a. for 3 years. I...
The interest earned when a sum is invested at simple interest of 10% p.a., for 3 years, is Rs. 6000. What will be the total amount received after 2 year...