If x = 7 - 4sqrt[3] then find the value of x + [1 / x]...? Mcqs

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If x = 7 - 4sqrt[3] then find the value of x + [1 / x]...?

(A) 1
(B) 14

(C) 7 + 4sqrt[3]
(D) None of these

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Minutes buy an old scooters for rs 4700 and spend rs 500 on its repairs. if he sells the scooters for rs 5800 his gain percentage is...?

(A) 4.5%
(B) 5.45%

(C) 10%
(D) 12%

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The ration of ages of two students is 3:2, if one is 5 years old, then the age of younger student is...?

(A) 5 years
(B) 10 years

(C) 15 years
(D) None of these

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A square region has an area of 2304 m. Find its perimeter...?

(A) 24 m
(B) 96 m

(C) 144 m
(D) 192 m

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A rectangular lawn 80 meters by 60 meters has two roads each 10 m wide running in the middle of it, one parallel to the length and the other parallel to the breadth. Find the cost of gravelling them at Rest. 30 per square meter...?

(A) 3900
(B) 39000

(C) 30000
(D) None of these

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If n is a natural number the 9>2n-4>2n is always divisible by:...?

(A) 05
(B) 13

(C) Both A & B
(D) None of these

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How many pieces of 13. 2 cm can be cut from a 330 cm long rod:...?

(A) 250
(B) 25

(C) 43,56
(D) 2,5

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y = a / b x+c y= d/e x+c The equations of two perpendicular lines in the xy-plane are shown above, where a, b, c, d, and e are constants If 0 < 1 which of the following true...?

(A) d / e < 1
(B) - 1 < d / e < 0

(C) 0 < 1
(D) d/c>1

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There are two sections A and B of a class, consisting of 36 and 44 students respectively If the average weight of section A is 40kg and that of section B is 35kg, find the average weight of the whole class...?

(A) 30 kg
(B) 35 kg

(C) 37.25 kg
(D) 42.50 kg

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Find the number of triangles which can be formed by joining the angular points of a polygon of 8 sides as vertices...?

(A) 8
(B) 24

(C) 56
(D) None of these

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