Question
The average height of 50 pupils in a class is 150 cm.
Five of them whose average height is 146 cm leave the class, and five others whose average height is 156 cm, join. The new average height of the pupils of the class (in cm) is: _______.Solution
The correct answer is C
- Anjali invested Rs. 9,150 at a simple interest rate of 4% p.a. for 5 years. If she receives Rs. '2n' in total, what is the product of all digits in 'n'?
A man deposited 25% of his salary to a bank which offers compound interest at the rate of 10% p.a. If the interest earned by him from the bank after 2 y...
The difference between compound interest and simple interest at rate of 26% per annum for 2 years is Rs. 507. Find the simple interest obtained on same ...
A certain amount earns simple interest of Rs. 1520 after 5 years. Had the interest been 6% more, how much more interest would it have earned?
Shivam invested 24000 at 15% 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...
Rs 2000 are invested at 5% p.a simple interest. If the interest is added to the principal after every 10 years, the amount will become Rs 4000 after
- A sum of money amounts to Rs. 2040 at 18% per annum simple interest after 2 years. If the same sum is invested at the same rate of interest, but compounded...
A table is available for Rs.350 or for Rs. 150 cash down payment together with Rs.230 to be paid after two months. Find the rate of interest charged und...
A sum was put at simple interest at a certain rate for 7 years. Had it been put at 6 % higher rate, it would have fetched Rs. 1260 more. Find the sum?
- A sum is invested at a certain rate (p.a.) of compound interest (compounded annually). The interest earned after 1st year and after 2 years of investment i...
Relevant for Exams:
