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Questions(204)

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Find the number which, when added to the terms of the ratio 11:23 makes it equal to the ratio 4:7

view details (1 answer)How many numbers between 1 and 200 are exactly divisible by exactly two of 3,9 and 27?

view details (1 answer)If the ratio of the sum of the first 6 terms of a geometric progression to the sum of first 3 terms is 9, what is the common ratio?

view details (1 answer)The length of the shadow of a tower standing on a level ground is found to be $2x$ meters longer when the sun's altitude is 30° than when it was 45°. Prove that height of the tower is $\left(\sqrt{3}+1\right)x$ m.

view details (1 answer)