Question
Three numbers a, b and c are such that a = 120, (a + b)
= 420 and (c – b) = 60. Find their average.Solution
ATQ, Given, a = 120, (a + b) = 420 and (c – b) = 60 Therefore, b = 420 – 120 = 300 And, c = 300 + 60 = 360 Required average = (120 + 300 + 360)/3 = 260
A trapezoid has bases of lengths 10 cm and 20 cm and an area of 180 cm². Find the height of the trapezoid.
If the perimeter of a square measures 92 cm, what is the area of the square?
The distance between (4, –1) and (–8, y) is 13. Find possible values of y.
A trader bought two articles for ₹2,000 and ₹3,000. He sold the first article at a profit of 20% and the second article at a loss of 10%. What is th...
How many chairs must be sold for Rs. 25,600 to achieve a 25% profit, given that 50 chairs were originally purchased for the same amount?
The average selling price of mangoes is Rs. 8 (per kg) more than the average selling price of the oranges. The quantity of oranges sold is 25% more than...
The ratio of cost price to the marked price of an article is 5:8. The article had been marked above its cost price by Rs. 900. If the article was sold a...
If (3/7) of 'x' is greater than (2/11) of 'x' by 38, then determine the value of 'x'.
Compute P(A∩B), if P(B) = 0.8 and P(AǀB) = 0.35
A trader marks the price of a product at ₹800 and allows a discount of 15%. If the trader also pays a tax of 5% on the discounted price, what is the t...
Relevant for Exams:
