Question
In a class, the ratio of number of boys to number of girls is 8:5. If 1 boy joined the class and 2 girls left the class, then the ratio becomes 7:4. Find the actual number of girls in the class.
More HCF and LCM Questions
- The ratio of two numbers is 6:11 and their LCM is 264. The numbers are:
- Find the LCM of 2/3, 4/9 and 5/6.
- The LCM of two numbers is 6 times their HCF. The sum of LCM and HCF is 175. If one of the numbers is 150, then the other number is
- The HCF of two numbers is 6 and their LCM is 72. If one number is 18, find the other number.
- Find the difference between sum of digits of LCM and HCF of 32, 48 and 80.
- Find the HCF of 965 and 655.
- Find the smallest number which when divided by 3, 4, 5 and 6 gives remainder ‘2’ in each case?
- A circular wire of diameter 63 cm is folded in the shape of a rectangle whose sides are in the ratio 5:4. Find the area enclosed by the rectangle.
- LCM of two numbers is 18 times their HCF. The product of the numbers is 64800. What will be the maximum possible difference between the numbers?
- Find the LCM of 20, 25, 30, 40.
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