Question
Which of the following is a physical
change?Solution
Heating copper wire by electricity is a physical change as it involves only a change in temperature, not the composition. Other options are chemical changes, where new substances are formed.
Mandeep took a loan of Rs. 7,300 from his friend Sandeep on 16th March. The loan accrues simple interest at an annual rate of 20%. Calculate the total a...
If a sum of money invested on simple interest becomes 4 times of itself at 'R%' p.a. in 6 years, then find the value of '0.4R'.
Vedant borrows Rs.75,000 for 2 yrs at 3% p.a simple interest. He immediately lends it to Abhishek at 5.5% p.a. for 2 yrs at simple interest. How much Ve...
A certain sum gives the interest equals to 3/5th of the sum when invested for 5 years at simple interest. Find the rate of simple interest.
A person invested Rs. 75,000 at an annual compound interest rate of 12%, compounded annually for 12 months. How much more profit would he have earned if...
Amit invested 'x' on simple interest at 12% for 7 years and (x + 400) on compound interest at 10% p.a for 2 years. At the end of nine years, he will rec...
Yeshudas borrowed a certain amount from a Bank at an interest rate of 2.5% p.a. and after 4 years , he repaid a total amount of 46,200 to the Bank. How ...
A person 'P' invested Rs. 'a' in a simple interest (SI) SIP 'X' for 3 years at an annual interest rate of 10%. They also invested...
A sum doubles in seven years at simple interest. In how many years will the sum become five times the original sum?
A sum of Rs. 3800 is invested at simple interest for 2 years. If the rate interest for first year is 12% p.a. while 20% p.a. for second year, then find ...
Relevant for Exams:
