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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In a flight of 600 Kms, an aircraft was slowed down due to bad weather and the average speed was reduced by 200 Km/hour and the time of flight increased by 30 minutes. what is the total duration of flight...?

(A) 1 Hour
(B) 2 hours

(C) 3 hours
(D) 4 hours

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The average height of a class of 25 students is 4.4 A student of height 5. 7 feet is newly enrolled. Find the new average...?

(A) 4.43 feet
(B) 4.45 feet

(C) 4.31 feet
(D) 430 feet

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Given that 543 x 21 =11403. Find the value of 1140.3/5.43. find the value of ...?

(A) 210
(B) 150

(C) 120
(D) 200

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1/2, 2/3, 3/4 and 4/5 as like fractions are...?

(A) 30/60, 40/60, 45/60 and 48/60
(B) 40/60, 30/60, 45/60 and 48/60

(C) 40/60, 30/60, 48/60 and 45/60
(D) None of these

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(892) squre=...?

(A) 795664
(B) 1784

(C) 796,864
(D) 1942

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A father is now three times as old as his son Five years back, he was four times as old as his son. The age of the son in years is...?

(A) 10
(B) 12

(C) 15
(D) 18

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Reeya obtained 65, 67, 78, 82 and 85 out of 100 in different subjects, what will be the average...?

(A) 70
(B) 75

(C) 80
(D) 85

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Minutes buys an old scooter for Rs. 4700 and spends Rs. 500 on its repairs. If he sells the scooter for Rs 5800, his gain percent is:...?

(A) 457%
(B) 545%

(C) 10%
(D) 12%

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Prime number is...?

(A) 18
(B) 17

(C) 16
(D) 25

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