In a class-test, the ratio of students passing in English only and Maths only is 2:3. Out of 314 students 15 were absent, 75 failed in both the subjects and
24 passed in both the subjects.
(i)How many students passed in English?
(ii) How many students passed in Mathematics?
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What is the result of adding the system of equations? 2x+y=4 3x-y=6

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π

Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. if $s\%$ of the total legs belong to spiders, what is $s$?