If α + β = 90° and α:β = 2:1, then the ratio of cosα to cosβ is
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Select the odd word/letters/number/number pair from the given alternatives.
HCF of two numbers is 19 and their LCM is 665. If one of the number is 95, find the other.
X can do a piece of work in 'p' days and Y can do the same work in 'q' days . Then the number of days in which X and Y can together do that work is
A can do 1/3rd of a work in 5 days and B can do 2/5th of this work in 10 days. Both A and B, together can do the work in
A sum of Rs. 3000 yields an interest of Rs. 1080 at 12% per annum simple interest in how many years ?
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