130.
Let,x be the correct answer and y
be the incorrect answer.
So,x+y=150..........(1)
and 4x-2y=480........(2)
By solving (1)& (2),
x=130.
So, the 130 questions were correct answer(Ans).
Two pencils costs 8 cents, then 5 pencils cost how much ?
194 base 10= ___ base 5The base 5 representation of the decimal number 2048 is______?
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A moves 3km. east from his starting point,he then travels 5km north,from that point he moves 8kms to the east. how far is A from his starting point?if a student scores GPA in his sem & year as given below then calculate his GPA for 3 year.sem 2.4,3.4yr 1.3,1.9bbgmpqbgskobgasbbgdefbgsti how many bs are followed by gs which are not followed by s in the above series?M(373,5)+r(3.4)+t(7.7)-r(5.8)=?t=truncation ,r=round-off
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Find the right number, from the given options, at the place marked by the question mark 2, 4, 8, 32, 256, ?
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