Question
A grocer sells rice at a profit of 12% and uses a
weight which is 20% less. Find his total percentage gain.Solution
Suppose he bought at Rs. x /kg Then, he sells at 112x/100 * 100/80 = 7x/5 per kg Now % profit = (7x/5 – x) * 100/x = 40% Alternate Method: Total percentage profit = (% profit + % less in weight) * 100/(100 - % less in weight = (12 + 20)*100/ (100 – 20) = 40%
- The sum of HCF and LCM of two numbers is 425. If the LCM is 16 times the HCF, and one number is 25, find the second.
If the product of two numbers is 108 and their HCF is 6, then find the LCM of the given two numbers.
The LCM of two numbers is 5 times of their HCF. The sum of LCM and HCF is 300. If one of the number is 250, then the other number is:
The LCM of two numbers is 168, and the numbers are in the ratio 4:7. Find the sum of the numbers.
Find the smallest number that leaves 13 as remainder when divided by both 32 and 48.
- Find the HCF of 84 and 630.
Find the LCM of the following fractions:
4/13, 5/7 and 7/5
The product of two numbers is 5760 and their GCD is 48. What is the LCM?
The greatest number of four digits which when divided by 9, 12, 15 leave remainders 6, 9, 12 respectively is:
What is the difference between the LCM and HCF of 38, 52?
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