Question
Why is aluminium widely used in aircraft
construction?Solution
• Aluminium is chosen for aircraft primarily because it has a high strength-to-weight ratio. Being lightweight reduces the fuel required for flight and increases payload capacity. • It also possesses excellent corrosion resistance because it naturally forms a thin, protective layer of aluminium oxide when exposed to air. • It is highly ductile and easy to manufacture into complex shapes like wings and fuselage sections.
Find the greatest number that divides 130, 190 and 250 leaving the same remainder in each case.
What is the total count of numbers between 165 and 2485 that are divisible by both 25 and 35?
What is the unit digit of the sum of first 111 whole numbers?
Find the difference between minimum and maximum value of 'k' such that '6k8194' is always divisible by 3.
The numbers are in the ratio 7:10:12. If (sum of smallest and largest) exceeds (sum of smallest and middle) by 30, find the largest number.
Which of the following is a Prime Number?
What is the smallest natural number that must be multiplied with 45 to make the result a perfect square?
- Average marks scored by a student in 5 subjects is 75. If average marks scored by him excluding his highest and lowest marks is 60 and highest marks scored...
Arun has 96 toy cars – some red and some black. If he buys 36 more red toy cars, the ratio of red to black cars becomes 7:5. Find the number of red to...
180 is divided into two parts in such a way that the fifth part of the first part and the fourth part of the second are in the ratio 4:5. Second part i...
Relevant for Exams:
