Related Questions

To produce an old photograph, a photographer charges x dollars to make a negative, 3x/5 dollars for each of the first 10 prints, and x/5 dollars for each print in excess of 10 prints. If 45 dollars is the total charge to make a negative and 20 prints from an old photograph, how many dollars the photographer charges to make a negative?
A 3
B 3.5
C 4
D 4.5
To produce an old photograph, a photographer charges x dollars to make a negative 3x/5 dollars for each of the first 10 prints, and x/5 dollars for each print in excess of 10 prints. If 45 dollars is the total charge to make a negative and 20 prints from an old photograph, how many dollars the photographer charges to make a negative?
A 3
B 3.5
C 4
D 4.5
Which of the following can have negative temperature coefficient?
A Compounds of silver
B Liquid metals
C Metallic alloys
D Electrolytes
Which of the following materials has a negative temperature coefficient of resistance?
A Copper
B Aluminum
C Carbon
D Brass
Under what method of underwriting does an underwriter assign positive rating points for all negative or adverse factors (negative points for any positive or favourable factors)?
A Judgment
B Arbitrary
C Numerical rating
D Single step
A,B,C,D,E,G and I are seven friends who study in three different standards namely 5th, 6th and 7th such that not less than two friends study in the same standard. Each friend also has a different favorite subject namely History, Civics, English, Bangla, Science , Maths , and Economics but not necessarily in the same order. A likes Maths and studies in the 5th standard with only one other friend who likes Bangla. I studies with tow other friends . Both the friends who study with I like languages (Here languages include only Science , English and Bangla ) . D studies in the 6th standard with only one person and does not like Civics . E studies with only one friend . The one who likes history does not study in 5th or 6th standard . E does not like languages. C does not like English , Science or Civics. Which combination represents E's favorite subject and the standard in which he studies?
A Civics and 7th
B Economics and 5th
C Civics and 6th
D History and 7th
In each expression below , N represents a negative integer . Which expression could have a negative value?
A N(square)
B 6-N
C -N
D 6+N
If x is negative , all BUT which of the following must also be negative?
A x3
B 1/x3
C 1/x
D 1/x2
If x is negative , which of the following must also be negative?
A (-X3)2
B (-1)x
C 1-x
D x3-x2
If AB is negative, which of the following cannot be negative?
A B - A
B A2B
C AB2
D A2B2

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