First boys are seated in 7 position in 7! Ways. Now remaining 2 places can be filled by 2 girls in 2! Ways. So, number of ways = 7! × 2! = 10080
A certain sum of money will be doubled in 80 years at the rate of simple interest percent per annum is:
A certain sum of money becomes 5 times of itself in 25 years at simple interest. In how many years does it become double of itself at the same rate of s...
A sum of ₹15,625 is invested for 2 years at an annual interest rate of 8%. For the first 1.5 years, the interest is compounded semi-annually, and for ...
Rajat invested Rs. (P-100) on compound interest at the rate of ‘R’ % per annum compounded annually. Ravi invested Rs. (P+300) on simple interest at ...
A certain sum when invested at compound interest (compounded annually) of 8% p.a. for 4 years, gives an interest of Rs. 4879.20. Calculate the approxima...
Rohit invested a certain amount at a simple interest rate of r% per annum, which increased to 180% of the original amount over 5 years. If Rs. 2500 is...
In what time will Rs. 21000 amount to Rs. 27951 @ 10% compound interest?
Some amount out of Rs. 12000 was lent out at 10% per annum and the rest amount @ 16% per annum and thus in 5 years the total interest from both the amou...
A sum of Rs. 4000 is invested at simple interest for 2 years. If the rate interest for first year is 15% p.a. while 25% p.a. for second year, then find ...
What sum of money will become Rs.1352 in 2 years at 4 percent per annum compound interest?
