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Aptitude · all questions

Problems On Numbers
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106

Questions

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Q41

Open question
In a three-digit number, the digit in the unit's place is 75% of the digit in the ten's place. The digit in the ten's place is greater than the digit in the hundred's place by 1. If the sum of the digits in the ten's place and the hundred's place is 15. What is the number ?

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Q42

Open question
The sum of two numbers is 37 and the difference of their squares is 185, then the difference between the two numbers is :

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Q43

Open question
The difference between th of rd of a number and th of th of the same number is 288. What is the number ?

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Q44

Open question
The sum and product of two numbers are 12 and 35 respectively. The sum of their reciprocals will be :

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Q45

Open question
The difference between two numbers is 16. If one-third of the smaller number is greater than one-seventh of the larger number by 4, then the two numbers are :

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Q46

Open question
If a number of two digits is k times the sum of its digits, then the number formed by interchanging the digits is the sum of the digits multiplied by :

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Q47

Open question
The product of two fractions is and their quotient is . The greater fraction is :

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Q48

Open question
A man bought some eggs of which 10% are rotten. He gives 80% of the remainder to his neighbours. Now he is left out with 36 eggs. How many eggs he bought ?

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Q49

Open question
A number is double and 9 is added. If the resultant is trebled, it becomes 75. What is that number ?

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Q50

Open question
The sum of a positive number and its reciprocal is thrice the difference of the number and its reciprocal. The number is :

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Q51

Open question
The sum of two numbers is 40 and their product is 375. What will be the sum of their reciprocals ?

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Q52

Open question
A two-digit number is 7 times the sum of its two digits. The number that is formed by reversing its digits is 18 less than the original number. What is the number ?

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Q53

Open question
If the difference between the reciprocal of a positive proper fraction and the fraction itself be , then the fraction is :

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Q54

Open question
The sum of two numbers is 75 and their difference is 25. The product of the two numbers is :

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Q55

Open question
Three-forth of a number is 60 more than its one-third. The number is :

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Q56

Open question
The product of two natural numbers is 17. Then, the sum of the reciprocals of their squares is :

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Q57

Open question
A number whose fifth part increase by 4 is equal to its fourth part diminished by 10, is :

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Q58

Open question
If is added tp a number and the sum multiplied by and 3 is added to the product and the sum is divided by , the quotient becomes 25. What is the number ?

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Q59

Open question
The product of two numbers is 120 and the sum of their square is 289. The sum of the numbers is :

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Q60

Open question
If the digit in the unit's place of a two-digit number is halved and the digit in the ten's place is doubled, the number thus obtained is equal to the number obtained by interchanging the digits. Which of the following is definitely true ?

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