A 2 cm wide wooden strip is to be fixed on a photo of 40 cm × 30 cm size all along its four sides. What is the minimum length of the wooden strip required?
Given:
Photo size = 40 cm by 30 cm. Wooden strip runs along all four sides (two strips of length 40 cm and two strips of length 30 cm).
Formula:
Total length = 2 × (length + breadth)
Solution:
Total length = 2 × (40 + 30) = 2 × 70 = 140 cm
So maybe they fix the strip inside the photo edges (so the strip lies inside, reducing dimensions by 2 cm on each side.
Minimum Length of the strip = 140 - 4 - 4 = 140 - 8 = 132 cm
Correct Answer: (c) 132 cm
A man on a cycle is travelling on a terrain whose height (h) vs distance (d) can be described by a function in a certain unit (h can be negative). Starting at d = 0, the cycle will have the maximum velocity without pedaling at:
Which of the following is true?
If any 9 papers are drawn from a both side printed book, the sum of their page numbers can NEVER be ______.
Average age of 20 students of a class is 10 years. Average age of these students together with their five teachers is 14. The age of Ramesh Sir, one of their five teachers, is exactly the same as the average age of all their five teachers. The sum of the ages (in years) of all the students and Ramesh Sir is
The sixth largest three-digit odd number among those with all digits distinct is
On a spherical balloon of 10 cm radius, a circular colour patch has an area of 25 cm². If the balloon is uniformly expanded to a sphere of 50 cm radius, the area of the colour patch in cm² would be
A fresh water tap fills a fish tank in 40 minutes. The same tank is filled by a salt water tap in 120 minutes. If both the taps are open, how many minutes will it take to fill the tank?
∛0.99 is closest to
The areas (in km²) under forests in four countries A, B, C and D for the years 2014 and 2024 are shown in the given bar chart:
The minimum percentage of deforestation during 2014-2024 was in country
If there is rainfall in a village, flowers will bloom. If flowers bloom, celebrations will definitely take place. Flowers did not bloom. Which of the following is certain?
