Question
If the radius of the base of a right circular cylinder
is increased by 20% and the height is decreased by 30%, then what is the percentage increase/decrease in the volume?Solution
Let the initial radius, height be r, h ⇒ New radius = r + r/5 = 6r/5 ⇒ New height = h – 3h/10 = 7h/10 ⇒ New Area = π × 36r^2/25 × 7h/10 = 252πr^2h/250 ∴% increase in Area = 2/250 x 100 = 0.8%
Which creates an opportunity for the producers to reach beyond the domestic markets?
Which one of the following 18 correct about Assam in British India?
Which one of the following pairs is incorrectly matched?
Study the given diagram carefully and answer the question. The numbers in different sections indicate the number of persons.
Simplify the following expression.
{(p² - 2p – 63)/(p² + 14p + 49)}
A seller marked his article 70% above the cost price and sold it after offering two successive discounts of 60% and 25% respectively. In the whole trans...
Study the given letter, symbol series and answer the question that follows:
# 9 1 @ 4 * 7 ^ 5 3 # 9 1 < 5 4 @ 3 $ 3 # 2 * 6 ! 4 2 < 9 < 3 6 # 2 %...
A dataset has a median of 18 and a range of 64. What is the maximum value of the dataset?
Consider the following in regards to Global Unicorn Index 2023
1.The Hurun Research Institute’s Publishes Global Unicorn Index
2.138 num...
Which of the following is formed by the action of chlorine on dry slaked lime?
Relevant for Exams:
