IMO (International Mathematics Olympiad) Class 6 Level 2 2015 − 16 for 2021 Exam Part 4

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Q. 31 A machine prints 125 magazines in 5 minutes. At this rate, how many magazines will it print in 2160 seconds?

(A)

(B) 900

(C) 1000

(D) 1500

Q. 32 Find the value of if

(A)

(B)

(C)

(D)

Q. 33 The product of two numbers is 192 and the sum of these two numbers is 28. What is the smaller of these two numbers?

(A) 12

(B) 16

(C) 18

(D) 20

Q. 34 A ages of A and B are in the ratio and the sum of their ages is 44 years. What will be the ratio of their ages after 8 years?

(A)

(B)

(C)

(D) 3: 4

Q. 35 When 20 % of a number is added to another number the number the number increase by 50 % . What is the respective ratio between the first and the second numbers?

(A) 2: 5

(B)

(C)

(D)

Q. 36 Two identical vessels A and B contain mixtures of milk and water in the ratios and respectively. In what ratio should quantities of mixtures be taken from A and B to form a mixture in which milk to water is in the ratio ?

(A)

(B)

(C)

(D)

Q. 37 The ratio of Gaurav՚s age to Mohit՚s age is 3: 2. If Gaurav is 8 years younger than Mohit, then 2 years later, sum of their ages is years.

(A) 40 years

(B) 42 years

(C) 43 years

(D) 45 years

Q. 38 Find the percentage of shaded area in this given figure.

Percentage of Shaded Area

(A)

(B)

(C)

(D)

Q. 39 If then the value of

(A)

(B)

(C)

(D)

Q. 40 An investor earns return on of his capital, on and 11 % on the remainder. What is the average rate of returns he earns on his total capital?

(A) 5 %

(B) 10 %

(C) 12 %

(D) 15 %

Q. 41 A man՚s wage was reduced by 50 % . Again, the reduced wage was increased by 50 % . Find his loss in term of percentage.

(A)

(B)

(C)

(D)

Q. 42 Simplify

(A) 2

(B) 4

(C) 295

(D) 643

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