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How to solve syllogism

a solid sphere of radius 7 cm is melted to form cones and cylinder the requirement is such that no. of cones is twice the no. of cylinders and also radius of cone is equal to its height
which should be equal to the radius of the cylinder and also height of one such cylinder is 4 cm find the maximum no. of cones which can be made out of sphere

four horses are tethered at four corners of a square plot of side 14 m so that adjacent horse can reach one another there is small circular pond of area 20 m2 at the centre find the ungrazed area

there s a table of daily expenses and we are asked to find the rate of inflation..how to proceed?

If i bought the article 25% discount on marked price. Then i sell it for 660rs. At 10% profit..find the overall profit or gain % when i sold it for 19%profit.

how do i solve this equation? 350+80t < 20∗2^t

How many 3 - digit even number can you form such that if one of the digits is 5, the following digit must be 7?

60, 61, 69, 91, 134, ?

322, 160, 78, 36, 14,?

X and Y are respectively two points on the sides of DC and AD of parallelogram ABCD the area of triangle ABX is equal to what times the area of triangle BYC