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The iridescent colours of soap bubbles are caused by interfering of (internally and externally) reflected light waves and are determined by the thickness of the film. This phenomenon is not the same as the origin of rainbow colours (caused by the refraction of internally reflected light), but rather are the same as the phenomenon causing the colours in an oil slick on a wet road.
Find difference between the LCM and HCF of 14, 42 and 77.
Two men started moving in a circular path from the same place at the same time in the same direction. If they complete one revolution in 12 min and 16 m...
Find the smallest two-digit number that leaves 4 as remainder when divided by 6 and 7.
Find the least number of four digits which is exactly divisible by 6, 24 and 32?
The HCF and LCM of two natural numbers are 14 and 66, respectively. What is the difference between the two numbers, if one of the numbers is 28?
The HCF of two numbers is 13. Which of the following can never be their LCM?
HCF of two numbers 70 and 140 can be expressed in the form of (20m – 110) whereas LCM of these two numbers can be expressed in the form of (40n – 20...
Find the total number of Prime factor in the given expression?
315× 56× 68
Find the HCF of 932 and 748.
