Question
Which of the following has four chambered
heart?Solution
The hearts of mammals and birds are four-chambered, while fishes have two-chambered hearts and amphibians and reptiles have three-chambered hearts.
The interest earned on investing Rs. 4000 for 2 years at the rate of 10% p.a., compounded annually, is used to purchase an article. If the article is la...
A certain sum is invested at an interest rate of 24% per annum, compounded annually, for 2 years, and the compound interest earned after this period is ...
John borrowed some money from Alex at 10% simple interest per annum. He lended this money to Shaun at 20% compound interest per annum, and made a profit...
A principal amount is invested at an annual simple interest rate of R%, growing to Rs. 9,500 over 5 years and Rs. 13,100 over 9 years. Calculate the tot...
Rohit made an investment that yielded a simple interest rate of r% per annum, allowing the principal to grow to 180% of its original amount in 5 years. ...
A woman invested Rs. 'x + 500' at 8% per annum simple interest and received Rs.360 as interest after 3 years. Calculate the interest she would earn if s...
An amount becomes five times of itself in 40 years at simple interest. Find the value of (3R + 10), where R is the rate of interest per annum.
Shivam invested 24000 at 12% p.a. simple interest for ‘x’ months. If at the end of ‘x’ months, he received a total amount of Rs.26400. What is t...
- Ramesh deposited Rs. 10,500 at 18% per annum for 2 years and Rs. 7,200 at 22% per annum for 4 years. Calculate the total simple interest he received.
Rs. 2,800 increases to Rs. 3,640 in 4 years at a simple interest rate of r% per annum. If Rs. 7,000 is put at 2r% per annum for 1 year, how much interes...
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