Question
Solution
Total number of students = 15 + 13 + 10 + 14 + 12 + 6 β Total number of students = 70 Students in class interval 160-170 = 10 + 14 = 24 Percentage of students in class interval 160-170 = (24/Total students) Γ 100 β Percentage of students in class interval 160-170 = (24/70) Γ 100 = 34.28 β΄ The percentage of students whose height is in the class interval of 160-170 is 34% (correct to the nearest integer)
A sum of Rs. 3500 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 ...
Divide Rs 2,760 in to two parts such that when these are invested for 2 and 4 years, respectively, at the rate of 5% per annum simple interest, the amou...
What will be the differnce between SI & CI on Rs. 15000 for 3 years at rate of 10% per annum ?
Suppose 'S' invested Rs. 40,000 each at 12% p.a. in two different Funds for 2 years, with one Fund offering compound interest (compounded annually) and ...
Rina lent Rs. 18,000 to her brother at a compound interest rate of 'y%' per annum, compounded annually. After one year, her brother paid her Rs. 19,440 ...
Mitch placed Rs. 32,000 in a compound interest account with an annual rate of 30%, compounded semi-annually. After investing for a period of 15 months, ...
A person 'A' invested a sum at an annual simple interest rate of 15% for 2 years. If the rate of interest is raised by 5%, the si...
A certain sum of money becomes 5 times of itself in 20 years at simple interest. In how many years does it become double of itself at the same rate of s...
Anjali invested Rs.6000 in a scheme offering compound interest of x% p.a. compounded annually. If at the end of 2 years, interest received by her from t...
In scheme A and B, Rs. βzβ and Rs. β(z+5000)β were invested at the rate of (R-6)% and βRβ% per annum on simple interest. After two years, th...