Question
The compound interest on a sum of ₹ 5,500 at 15% p.a.
for 2 years, when the interest is compounded 8 monthly, is:Solution
Time for compounded at every 8 months = 2 × (12/8) ⇒ Time for compounded at every 8 months = 3 units Rate of interest for compounded at every 8 months = 15 × (8/12) ⇒ Rate of interest for compounded 8 monthly = 10 units ⇒ C.I. = 5500[(1 + 10/100)3 - 1] ⇒ C.I. = 5500 [(11/10)3 − 1] ⇒ C.I. = 5500 [1331/1000 − 1] ⇒ C.I. = 5500 [(1331−1000)/1000] ⇒ C.I. = 5500 × (331/10) ⇒ C.I. = 1820.5 ∴ the compound interest earned is Rs. 1820.5
A sum of ₹53,000 is divided among A, B, and C such that A gets 20% more than B, and B gets 25% less than C. What is the amount received by C?
When a number is divided by 114, remainder is 82. What will be the remainder when the cube of the number is divided by 19?
240 students need to be arranged to sit in 12 rows. If the number of rows increases by 25%, then find the number of students who will now be sitting in ...
The sum of two distinct positive natural numbers is 246, and their difference is 34. Calculate 10% of the product of these two numbers.
The difference between the squares of two positive numbers is 18 times the difference between the numbers. If the smaller number is 7, then what is the ...
How many two-digit even numbers can be formed using the digits 3, 4, 5, 7, and 8, ensuring that no digit is repeated?
Find the unit digit in (257)45 × (248)73.
Find the greatest common divisor of 1540, 2310, and 3850.
In a division sum, the divisor is 12 times the quotient and 4 times the remainder. If the remainder is 72, the dividend is?
If the sum of x , y , and z is 9, and the sum of their squares is 18, then determine the value of the expression xy + yz + zx .
