Question
Rajesh spent 40% and 20% of his monthly salary on food
and rent, respectively. Of the remaining amount, he gave 15% and 30% to his mother and brother, respectively. Find the amount spent by him on food, if the difference between the amount received by his brother and the amount spent on rent is Rs. 2,500.Solution
Let the monthly salary of Rajesh be Rs. ‘x’ Amount spent on food = Rs. 0.40x Amount spent on rent = Rs. 0.20x Amount received by brother = (x - 0.20x - 0.40x) x 0.30 = 0.40x x 0.30 = 0.12x So according to question: 0.20x - 0.12x = 2500 0.08x = 2500 x = 31250 So, the amount spent on food = 0.40 x 31250 = Rs. 12500
The compound interest received on investing Rs. 4500 for 2 years at compound interest of 20% p.a compounded annually is how much percentage more than th...
On a certain principal, the difference between compound interest (compounded annually) and simple interest at the same annual rate for 2 years is Rs 72....
Two persons A and B invest money in two schemes. A invests Rs. 6000 for 2 years in R% CI per annum. B invests Rs.7000 for 2 years in 20% CI per annum. I...
A invests a sum at 8% simple interest. After 5 years the amount becomes 1.4 times the principal. Find the rate of interest used.
Rs. 4,600 is invested in three parts all at simple interest of 10% p.a. These three parts are invested randomly for 1 year, 3 years and 5 years such tha...
Ankit invested Rs. 12,000 in a scheme that offers compound interest at an annual rate of x%, compounded once a year. After 2 years, he received an inter...
A sum invested at compound interest of 'r%' p.a., compounded annually amounts to Rs. 750 at the end of second year and Rs. 900 at the end of 3rd
Rs.7600 is divided into two parts such that if one part be invested at 4% and the other at 5%, the annual interest from both the investments is Rs. 336....
The simple interest on a sum of Rs 10,000 for 2 years at 10% per annum is Rs 2,000. Find the compound interest on the same sum at the same rate and time...
A sum of Rs. 3000 is invested at simple interest for 2 years. If the rate interest for first year is 10% p.a. while 18% p.a. for second year, then find ...
Relevant for Exams:
