📝 MCQ মডেল টেস্ট
If 2 kg of metal, of which 1/3 is zinc and the rest is copper s, be mixed with 3 kg of metal , of which 1/4 is zinc and the rest is copper , then what will be the ratio of zinc to copper in the mixture?
A. 13:42
B. 19:43
C. 15:42
D. 17:43
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By what percentage above the cost price ,a fan should be sold if a shopkeeper wants to make a profit of Tk. 500 and the marked price of the article is TK. 6000 which is 50% above the cost price ?
A. 25.00%
B. 12.50%
C. 20.00%
D. None of these
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Out of two numbers, 4 times the smaller one is less than 3 times the larger one by 5, if the sum of the numbers is larger than 6 times their difference by 6, find the two numbers
A. 55 and 58
B. 23 and 28
C. 59 and 43
D. 65 and 67
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The sum of the squares of these three numbers is 532 and the ratio of the first and the second as also of the second and the third is 3 : 2. Then the first number is -
A. 18
B. 6
C. 12
D. 20
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Pipe P can fill and empty tank in 4 hours but pipe Q can completely empty the same tank in 8 hours. But the pipes were opened alternately after every two hours starting with pipe P then in how many hours, the tank was completely filled ?
A. 6 hours
B. 5 hours
C. 10 hours
D. 12 hours
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The average age of A, B And C sis 30 years. If the difference between B's age and A's age is same as the difference between C's age and B's age . If D is 40 years older than B then what is the sum of the age B and D?
A. 130 years
B. 60 years
C. 75 years
D. 100 years
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The humidity of air measured in percentage is called -
A. Absolute humidity
B. Relative humidity
C. Specific humidity
D. All of these
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Kalam has three daughters; Shaila , Meena and Tina. Three years ago, when Kalam was twice as old as Tina , he was 30 years older than sMeena Now he is 47 years older than Shaila In 4 years. Shaila will be half as old as Tina What is the sum of the current ages of Kalam and his three daughters ?
A. 138
B. 144
C. 154
D. 180
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In a garden , there are 10 rows and 12 columns of mango trees. The distance between two trees is 2 meters and a distance of one meter is left from all sides of the boundary of the garden . What is the length of the garden ?
A. 20 m
B. 22 m
C. 24 m
D. 26 m
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Due to reduction in the bus price by 15% , the number of passengers on a certain route increased by 40% . What will be the percentage increase in revenue?
A. 17
B. 18
C. 19
D. 20
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