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Questions 20
Three numbers are in the ratio 3 : 2 : 5 and the sum of their squares is 1862. Find the smallest number.
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Find the average of the first 15 natural numbers.
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Two numbers are in the ratio 3:5. If 9 is subtracted from each, the new numbers are in the ratio 12:23. The smaller number is:
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Three numbers are in the ratio 1/2 : 2/3 : 3/4. The difference between the largest and the smallest number is 36. The numbers are:
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Find the average of the first five prime numbers.
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The sum of two numbers is 40 and their difference is 4. What is the ratio of the two numbers?
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Two numbers are in the ratio 4:7. If 10 is subtracted from each, the ratio becomes 1:2. Find the greater number.
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Two numbers are in the ratio 5:6. If 8 is added to each number, the ratio becomes 7:8. Find the product of the numbers.
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The sum of three numbers is 98. If the ratio of the first to the second is 2 : 3 and that of the second to the third is 5 : 8, then the second number is:
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Two numbers are in the ratio 1 : 2. If 7 is added to both, their ratio changes to 3 : 5. The greatest number is:
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The average of five numbers is 27. If one number is excluded, the average becomes 25. The excluded number is:
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What is the HCF of 24, 36, and 40?
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What is the average of first five prime numbers?
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What is the average of first 50 natural numbers?
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Two numbers are in the ratio 5 : 6. If 8 is added to each number, the ratio becomes 7 : 8. Find the numbers.
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The ratio of three numbers is 3 : 4 : 5 and the sum of their squares is 1,250. Find the numbers.
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Two numbers are in the ratio 1 : 3. If their sum is 240, find the difference between them.
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The ratio of two numbers is 3 : 8 and their difference is 115. The smaller number is:
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Three numbers are in the ratio 1 : 2 : 3 and their HCF is 12. Find the numbers.
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Three numbers are in the ratio 1/2 : 2/3 : 3/4. The difference between the largest and smallest number is 36. Find the numbers.
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