A person travels from the hostel to the college at a speed of 10 kmph on the bicycle and reaches a 4.5-minute delay. If he runs a bike with a speed of 20 kmph, then it reaches 4.5 minutes. Describe the distance between the hostel and the college. (In km)
Let us consider the time of the journey be t hrs, As we know, the distance is the same. According to the question 10 (t + 4.5/60) = 20 (t-4.5/60) 2 (t + 3/40) = 4 (t-3/40) 2t+ 3/20 = 4t-12/40 4t-2t = 3/20 + 12/40 2 t = 18/40 t=9/40 Distance = speed × time Distance = 10 (9/40 + 3/40) = 3 km
A person borrows Rs 400 at 5% compound interest per annum. If he returns Rs 200 after one year, then how many more rupees will he have to pay at the end...
Atul invested in scheme A and B that provide simple interest at the rate of 12% and 15% for 3 years and 5 years, respectively. Interest received from sc...
In scheme A and B, Rs. ‘z’ and Rs. ‘(z+5000)’ were invested at the rate of (R-6)% and ‘R’% per annum on simple interest. After two years, th...
The interest earned when a sum is invested at simple interest of 20% p.a., for 3 years, is Rs. 1500. What will be the total amount received after 2 year...
The difference between compound interest and simple interest on a sum for 2 years at 10% per annum, when the interest is compounded annually is Rs. 25. ...
Hemant invested Rs. ‘y’ at the rate of (r+2)% per annum on simple interest and after four years Rs. 27520 was obtained as an interest. If Rs. (y+250...
What sum of money will become Rs.1352 in 2 years at 4 percent per annum compound interest?
A certain sum of money invested at R% p.a. fetches a compound interest (compounded annually) of 1560 and simple interest of Rs.1500 at the end of 2 year...
Rs. (4x + 200) is invested at a simple interest rate of 18% per annum, earning an interest of Rs. 2160 after 4 years. Calculate the interest earned when...
At what % of simple interest per annum will Rs. 600 amount to Rs. 780 in five years?