The price of an article is first decreased by 40% and then increased by 20%. The net change in the price will be : [#1123]
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Q1. The price of an article is first decreased by 40% and then increased by 20%. The net change in the price will be :
Q1. The price of an article is first decreased by 40% and then increased by 20%. The net change in the price will be :
(A) 20%
(A) 20%
(A) 20%
(B) 40%
(B) 40%
(B) 40%
(C) 24%
(C) 24%
(C) 24%
(D) 28%
(D) 28%
(D) 28%
Answer: (D) 28%
Answer: (D) 28%
Answer: (D) 28%
Net change (-40 + 20 + )%
= (-20 + )%
= (-20 - 8)%
= -28%
= 28%
Net change (-40 + 20 + )% = (-20 + )% = (-20 - 8)% = -28% = 28%
Net change (-40 + 20 + )% = (-20 + )% = (-20 - 8)% = -28% = 28%
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Area = πr2
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= π1 : π9
= 1:9
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Area = πr2 π12 : π32 = π1 : π9 = 1:9
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Q3. What is the sum of the interior angles of a triangle?
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2:3 = 8:12
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2:3 = 8:12 N1*N2 = HCF*LCM 8*12 = 96 N1+N2 = 8+12 = 20
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Q5. How many prime numbers exist, which are less than 40?
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(A) 10
(A) 10
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(B) 11
(B) 11
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12
12
12
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(A)
(A)
(A)
(B)
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(B)
(C)
(C)
(C)
(D)
(D)
(D)
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Answer: (C)
Answer: (C)
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Q8. Which of the following is a prime number?
Q8. Which of the following is a prime number?
81,33,71,93
81,33,71,93
81,33,71,93
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(A) 93
(A) 93
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(B) 33
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=
=
= X:Y = 2:3
= = = X:Y = 2:3
= = = X:Y = 2:3
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