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Start learning 50% faster. Sign in nowMost of the ultraviolet radiation in sunlight is absorbed by oxygen in Earth's atmosphere, which forms the ozone layer of the lower stratosphere. UV light is found in sunlight (where it constitutes about 10% of the energy in vacuum) and is emitted by electric arcs and specialized lights such as black lights. It can cause chemical reactions, and causes many substances to glow or fluoresce. Most ultraviolet is classified as non-ionizing radiation.
The LCM of two numbers is 720. The HCF of these numbers is 12. If one of the numbers is 48, find the other number.
The least number which when divided by 4, 8, 10 and 12 leave zero remainder in each case and when divided by 13 leaves a remainder of 9 is:
Find the HCF of 932 and 748.
Let N be the greatest number that will divide 90, 112, 134 leaving the same remainder in each case. Then sum of the digits in N is:
Jiya, Kavya, Shivam, and Mani start walking from the same point in the same direction around a rectangular track and each one of them completes one roun...
The LCM of two numbers is 180, and the numbers are in the ratio 5:9. What will be the sum of the numbers?
Three numbers are in the ratio 4 : 9 : 13 and their LCM is 2340. Their HCF is:
The HCF and LCM of two numbers, A and B, are 9 and 162, respectively. The difference between these two numbers is 27. Find their sum.
The LCM of two numbers is 540, and their HCF is 18. If one of the numbers is 90, find the other number.
The ratio of two numbers is 12:14 and their LCM is 168. The numbers are:
