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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solve the equation 5 1/5 + 4 1/2 + 4 1/3 = 7...?

(A) 14 1/10
(B) 13 1/5

(C) 13 1/8
(D) 14 1/30

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The angles of a triangle are. x-35, x-25 and 1 over 2x-10

(A) find x = 80
(B) find x = 90

(C) find x = 100
(D) None of these

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Complete the number or series: 6, 3, 12, 6, 24,...?

(A) 12
(B) 18

(C) 30
(D) 40

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If Kayla left a $10. 47 tip on a breakfast that cost $87. 25, what percentage was the tip...?

(A) 83%
(B) 12%

(C) 13%
(D) 14%

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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 doll is solid for RS 220 What was the cost of doll if rate of profit was 10% of cost...?

(A) 198
(B) 200

(C) 210
(D) 240

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Kyle bought a $2000 government bond that yields 6% in simple interest each year. Write the equation that gives the total amount A, in dollars, Kyle will receive when he sells the bond after t years...?

(A) A= 2,000 (1+.06)
(B) A= 2,000 (1+.06t)

(C) A= 2,000 (1+.06)
(D) A= 2,000 (1+.06)

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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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What number will come next 1, 2, 4, 8, 16 ...?

(A) 30
(B) 34

(C) 32
(D) 31

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