Question
There are nine consecutive even numbers. The smallest
number is 20% less than the largest number. What is the sum of the second smallest and second largest numbers?Solution
ATQ,
Let the consecutive even numbers be: x, x + 2, x + 4, x + 6, x + 8, x + 10, x + 12, x + 14, x + 16.
According to question: x = 0.80 × (x + 16)
0.2x = 12.8
x = 64
So the desired sum = 64 + 2 + 64 + 14 = 144
- The income of 'X' is 25% more than that of 'Y'. 'X' and 'Y' save 30% and 15% of their incomes respectively. If the difference between their expenditures is...
A number is first increased by 25% and then decreased by 25%. If the net change in the number is 187.5, then find the original number.
A bulb-producing company found 17% of the total product defective. If the total number of nondetective products is 4565, then specify the number of tota...
Ram spent 25% of his monthly income on entertainment and 70% of the remaining on rent. If amount spent on rent is Rs. 2016, then find the amount ...
In a company with a total of 450 employees, 270 are men, and the remaining are women. It is known that 60% of the women are employed in the marketing de...
If 25% of ‘a’ is equal to 5 times 60% of ‘b’ and ‘a’ is 80% of 500, then find the value of ‘b’.
Vegetables lose water when cooked. Raw vegetables contain 90% water, but after cooking they contain only 50% water. How much raw vegetable is needed to ...
Tim spends 22% of his monthly income in travelling. He spends 25% of his monthly income on household expenses and spends 36% of his monthly income on fa...
Out of 550 students in school, 50% students like samosa only and 10% students like samosa and momos both. If 20% students don’t like any snacks then f...
The marked price of an article is ₹10,927. Due festive season, a certain percentage of discount is declared. Raju buys an article at reduced price and...
Relevant for Exams:
