A student needs to score at least 30%marks to pass a test. If a student gets 135 marks and fails by 15 marks ,find the maximum marks of the test.
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let the total marks be x
passing marks = 30 % * x or 3 / 10 x --- (1)
marks scored = 135
more marks needed to pass = 15
passing marks = 135 + 15 = 150 ---(2)
from (1) and (2)
3 / 10 x = 150
x = 150 * 10 / 3
x = 1500 / 3
x = 500
passing marks = 30 % * x or 3 / 10 x --- (1)
marks scored = 135
more marks needed to pass = 15
passing marks = 135 + 15 = 150 ---(2)
from (1) and (2)
3 / 10 x = 150
x = 150 * 10 / 3
x = 1500 / 3
x = 500
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