Exam
Maths Puzzle
Algebra
In a party attended by boys and girls where the girls outnumbered the boys Rs 280 was distributed. Each boy was given Rs 10 and each girl Rs 20. How many boys are there?
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Exam Other Question
Gold is 19 times heavier than water. Copper is 9 times heavier than water. In what ratio should they be mixed so that the alloy is 15 times heavier than water?
How do you solve this equation?
1/(x-1) + 2/x = x/(x-1)