book
Maths Puzzle
Numerical Ability
Either perform the indicated operation or solve the equation, whichever is appropriate.
3/10 = 5/x
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book Other Question
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Find two positive numbers in the ratio 2:3 whose product is 2400.
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The book is very vague about this. Find the common difference of the sequence in which the first term is 5 and the 11th term is -10. Any help appreciated.
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