A bacteria doubles itself every hour. After how many hours it will become eight times of itself?
Ans - 3hrs
A sum of money invested at 8% p.a. simple interest increases its value by 50% in t years. Find t?
Ans - 6 1/4 years
"A" invested some money in 2015 at 10% per annum simple interest for two years to repay a loan Rs 6000 in 2017 by the interest earned on the sum invested. At the end of 2016, he realizes that he will be short by some money, so he reinvested Rs 3000 at 20% per annum in 2016 such that he can clear his debt in 2017. Find the sum of money invested in 2015.
Ans - 27000
Ashish lends Rs.2500 to Brajendra and a certain sum to Gaurav at the same time at 7% p.a. simple interest. If after 4 years, Ashish altogether receives Rs. 1120 as interest from Brajendra and Gaurav, then what is the sum lent to Gaurav?
Ans - 1500
Amit and Anita deposited the same sum of money in the bank at 10% and 14% simple interest respectively for 5 years. If Anita withdraws Rs 500 more than Amit in 2 years, find the sum deposited by Amit and Anita.
Ans - 6250
Amit invested an amount for 5 years getting interest at 11% per annum simple interest. But, due to some financial crises, he withdrew his entire sum after 312312 years. If the withdrawal was made after one year, he would have got Rs. 412.50, extra interest. What will be the sum invested by A?
Ans - 3750
At the end of every hour, a bacteria increases by 10%. If there were 10,000 units of bacteria at 10 am, find the units of bacteria at 1 pm.
Ans - 13310
Andy lends a sum of money at R% simple interest for R years such that sum received by him is 916916 times more of what he lends. Find the rate at which he lends the sum?
Ans - 7 1/2%
A man
invests his saving in two scheme A and B. Scheme A return at 6% p.a. simple
interest and Scheme B returns at 7% p.a. simple interest. After two years he
received interest of Rs 354 from the two schemes. If 25% of the first sum is
equal to 20% of the second sum, find the total sum invested?
Ans - 2700
If a sum of money is compounded quarterly at 5%, find the equivalent rate of interest per annum.
Ans -
21.55%
A man invested a certain amount for two years at simple and compound interest for the same rate of interest. After two years he received a simple interest of Rs 600 and compound interest of Rs 648 respectively. What was the rate of interest?
Ans - 16%
If a sum of money becomes Rs 3525 at the end of a year where the rate of interest for the 1st half of the year is 15% and for 2nd half is 20 %. Find the sum?
Ans - 3000
James took a loan of an equal amount from banks A and B for 30 months and 16 months at 712712% and 12121212% per annum respectively at simple interest. If he has to pay Rs 1200 more to Bank A, then what was the sum he borrowed from the two banks?
Ans -
Rs. 115200
A sum of Rs
X amounts to Rs Y in two years simple interest at 15% per annum. The same sum
amounts to Rs Z in two years at the same rate of interest when compounded annually.
Find the sum, when the difference between the two interest is Rs 72.
Ans - 3200
In a resale scheme price of a motorbike depreciates by 10% every year. If a man buys a motorbike for Rs 57000 in January 2010 and sells it in January 2012, find the loss incurred by the man.
Ans -
Rs 10830 « Go Back
