Question
The average age of a group of persons going for tour to
Shimla is 22 years. 30 new persons with an average age of 8 years join the group and their average age becomes 12 years. The number of persons initially going for tour is?Solution
Initial number of persons = x 22x + (30 x 8) = 12(x + 30) 22x - 12x = 360 - 240 10x = 120 x = 12
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The HCF of two numbers is 112, and their LCM is 3360. What is the sum of the numbers?
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The LCM of two natural numbers is 10 times their HCF. If the product of given two numbers is 1000, then find the LCM of the numbers.Â
If total number of factors of 3,240 is 'x', then find the value of (x - 3)(x + 5).
If the product of two numbers is 3026 and their LCM is 89 then their HCF is:
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