Question
A man spends 72% of his income. If his income increases
by 28% and his expenditure increases by 25%, then what is the percentage increase or decrease in his savings (correct to one decimal place)?Solution

The digits of a two-digit number βNβ are reversed to form a new number βMβ. If M < N and N β M = 45, then which of the following maybe βNβ...
- Determine the value of 'n' if '87n9812' is always divisible by 9.
Which of the following number is rational number?
- If the 8-digit number 617x849y is divisible by 72, then find the value of (6x - y).
- Find the median of the following observations:
72, 81, 63, 55, 94, 80, 77 The cube of the difference between two given natural numbers is 1728, while the product of these two given numbers is 108. Find the sum of these two giv...
Let x represent the largest number that can divide the numbers 603, 1698, and 1041, leaving the same remainder in each case. Calculate the value of 2xοΏ½...
- 75% of 'A' equals (15/8) times 'B'. Determine the ratio A:B, assuming A and B are co-prime numbers.
If a number 'a' is divisible by 18 and another number 'b' is divisible by 12, then (a2 β b2) is divisible by:
What is the largest sum of m and n such that β4m932n6β is divisible by 12?