Let length = 3x and width = 2x. Perimeter = 2 * (length + width) 60 = 2 * (3x + 2x) 60 = 10x x = 6 So, length = 3x = 18 cm and width = 2x = 12 cm. Diagonal = √(18² + 12²) = √(324 + 144) = √468 ≈ 21 cm Correct Answer: c) 21 cm
When the price of apples is decreased by 30%, a customer is able to purchase 5 additional apples with Rs. 140. Determine the original price per apple.
A student multiplied a number by 2/5 instead of 5/2. What is the percentage error in the calculation?
There were two candidates in an election. 10 % of the total voters did not cast their votes whereas 15% of the casted votes were declared invalid. If th...
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If 40% of 'P' is 60 less than 30% of 'Q', then find 250% of 'Q', given that (P + Q) = 900.
The income of Tina is Rs.26000 and she saves 30% of her income. The savings of Kajal is Rs.3000 more than that of Tina and she spends 60% of her income....
In an exam, Sunil scored 46% marks and failed by 65 marks whereas Anil scored 66% marks in the same exam and scored 45 marks more than the passing marks...
Sahil spends 30% of his monthly income on food articles, 40% of the remaining on conveyance and clothes and saves 50% of the remaining. If his monthly s...
The length and breadth of a rectangle increased by 20% and 25%, respectively. By how much percentage will the area of the rectangle increase
The difference between the value of the number increased by 10% and the value of the number decreased by 20% is 72. Find the number.
