The average age of three boys is 15 years and their ages are in proportion 3:5: 7. What is the age in years of the youngest boy...? Mcqs

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The average age of three boys is 15 years and their ages are in proportion 3:5: 7. What is the age in years of the youngest boy...?

(A) 9 years
(B) 15 years

(C) 18 years
(D) 21 years

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If x, y are two positive real number and X power 1/3 = Y power 1/4 , then which of the following relations is true:...?

(A) XY
(B) X³=Y

(C) X=Y
(D) None of these

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Which of the following is equal to 3.14 x 10^6...?

(A) 3140000
(B) 31400

(C) 314
(D) None of these

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Prime number is...?

(A) 18
(B) 17

(C) 16
(D) 25

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6 men, 7 women and 5 children complete a job for Rs 4400. If their individual wages be in the ratio 4:3:2, the total money earned by 5 children is...?

(A) Rs 800
(B) Rs 880

(C) Rs 980
(D) Rs 990

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The ratio of the length of a rod and its shadow is 1: √3. The angle of elevation of the sun is...?

(A) 30°
(B) 45°

(C) 90°
(D) None of these

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A stone is a unit of which measurement...?

(A) Length
(B) Weight

(C) Area
(D) Volum

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Solve the equation -8/20-+9/2-1/2=...?

(A) 7/20
(B) -27/5

(C) -3/20
(D) -23/9

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99 + 77 + 55 + 33 + 11= ______...?

(A) 272
(B) 273

(C) 275
(D) none of these

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Three hundredths is the same as...?

(A) 033
(B) 300 0

(C) 3.00
(D) 0.03

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