The sum of two numbers 10 is and their product is 20 What is the sum of their reciprocals...? Mcqs

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The sum of two numbers 10 is and their product is 20 What is the sum of their reciprocals...?

(A) 1/10
(B) 1/2

(C) 1
(D) 2

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Find the average of all numbers between 6 and 34 which are divisible by 5...?

(A) 15
(B) 20

(C) 25
(D) 30

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1/a × 1/b=1. Then the value of b-ac is...?

(A) 0
(B) 1

(C) -3
(D) Cannot be determined due to insufficient data

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The numerator of a fraction is 4 less than the denominator. If 1 is added to both its numerator and denominator, it becomes 1/2. Find the fraction...?

(A) 3/7
(B) 2/5

(C) 5/9
(D) 11/12

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A fort had provision of food for 150 men for 45 days. After 10 days, 25 men left the fort. The number of days for which the remaining food will last, is...?

(A) 29
(B) 37

(C) 42
(D) 54

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The sum of the ages of a father and his son is 100 years now 5 years ago their ages were in the ratio of 2:1, The ratio of the ages of father and son after 10 years will be...?

(A) 5:3
(B) 4:3

(C) 10:7
(D) None of these

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A person does his job in 30 days , the other in 20 days, how many days they consume if they work together

(A) 10
(B) 12

(C) 15
(D) 13

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What is the sum of the first 5 composite numbers:...?

(A) 25
(B) 33

(C) 37
(D) 43

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A train running with a speed of 60 km/h crosses a pole in 9 seconds. What is the length of the train...?

(A) 120 m
(B) 140 m

(C) 150 m
(D) 160 m

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If a= √5-1//5+1 and b= √5+1/√5-1, Find a + b...?

(A) 2
(B) 4

(C) 6
(D) 8

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