Decrease % = 100 - 99 = 1%
The ratio of earnings of A and B is 4:5. If the earnings of A increase by 20% and the earnings of B decrease by 20%, the new ratio of their earnings becomes 6:5. What are A's earnings?
If the length of a rectangle is increased by 10% and the area is unchanged , then its corresponding breadth must be decreased by?
Suppose length = 100m and breadth = x m
Area = 100 m
New length = 110m and breadth = (x-y% of x)
The tax on an article decreases by 10% and its consumption increases by 10%. Find the effect percent on its revenue?
10 - 10 - %
Decrease in revenue = 1%
From a salary of an officer, 10% is deducted as house rent, 15% of the rest he spend on children's education and 10% of the balance he spends on clothes. Then, he is left with Rs. 4131. Find his total salary?
Suppose his total salary be Rs.x, then
90% of 85% of 90% of x = 4131
Hence , the salary of the officer is Rs.6000
In an election, there were two candidates only. The candidate who got 62% of the total votes polled and was elected by a majority of 192 votes. The total number of votes polled was?
Suppose total votes polled is x