Question
What will be the interest on Rs 4000 at the rate of 30%
per annum after 1 year when the interest is compounded every 4 months?Solution
Given - P= 4000, r= 30%, t = 1year=12months when the compound interest is every 4 months then r= 30 ×4/12=10% t= 12/4=3 so now A= P[1+r/100]Ν A= 4000[1+10/100] ³ = 4000[11/10] ³ =4000[1331/1000] =4000×1331/1000 =5324 so now CI=A-P =5324-4000=1324 CI=1324
When the digits of a two-digit number are interchanged, the new number becomes 19 less than 150% of the original number. If the sum of the digits is 11,...
- Find the greatest common divisor (GCD) of (x 2 Β - 9x + 14) and (x 2 Β + x - 56).Β
Find the number of zeros at the end of 78!.
- Let βpβ denote the number of primes from 1 to 30, and βqβ be the number of prime numbers in the range 31 to 50. What is the product p Γ q?
If the numerator of a fraction is increased by 10% and the denominator is reduced by 20%, the resulting fraction is 11/6. What was the original fraction?
In a school a total of 3,920 candies was distributed among all the students in the school. The candies were distributed in such a way that number of can...
What is the smallest number that should be added to 987 so that the sum is exactly divisible by 11?
Find the sum of all two-digit numbers that are exactly divisible by 4.
Nine numbers are arranged in decreasing order. The average of the first eight numbers is 50, and the average of the last eight numbers is 45. What is th...
- 60% of 'X' is (3/2) of 'Y'. Find the ratio X:Y, assuming X and Y are co-prime.
Relevant for Exams:
