Question
The income of ‘A’ increases by 20% every year. If
his income 2 years hence from now will be Rs. 86400, then find his income a year before from now.Solution
Let the present income of ‘A’ be Rs. x Therefore, x(1 + 20/100)2 = 86400 Or, x = 86400/(1.2)3 = 60000 Therefore, his income a year before from now = 60000/1.2 = Rs. 50000
The average age of A, B & C is 48 years. Ratio of present ages of A to C is 3:5 and present age of B is 33.33% more than that of A. find the difference...
In a company, the average age of 40 employees is 20 years. When the ages of two managers, one 'a' years old and the other 'a + 10' years old, are includ...
‘N’ is the number of employees in an IT company ‘ABC’. The average age of employees working in the company is 45 years. What wil...
- The average age of (x + 4) students of a class is 18 years. If the 54 years old class teacher is also included then average age of the class gets increased...
A worker completes 6 tasks at an average rate of 5 tasks per day. If he needs to complete an average of 8 tasks per day over 12 days, what should be his...
While tabulation of marks scored in an examination by the students of a class, by mistake the marks scored by one student got recorded as 93 in place o...
The average number of books sold by Viren in first 3 months is 3000 and in first 4 months is 3800. If the number of books sold by him in 5th ...
The average of a set of 's' numbers is 20. If 80 is added to the set, then the average of the set becomes 20.5. Find the value of '4 X (s - 12)'.
The average weight of 15 oarsmen in a boat is increased by 1.6 kg when one of the crew, who weighs 42 kg, is replaced by a new man. Find the weight of t...
Akshay bought 25 notebooks for Rs.1260 from shop A and 13 notebooks for Rs.1210 from shop B. What is the average price he paid per book?
Relevant for Exams:
