21. The digit in the unit's place of a numbers is equal to the digit in the ten's place of half of that number and the digit in the ten's place of that number is less than the digit in unit's place of half of the number by 1. If the sum of the digits of the number is 7, then what is the number ?
22. Of the three number, the sum of the first two is 73, the sum of the second and the third is 77 and the sum of the third and thrice the first is 104. The third number is ?
23. The difference between a number and its three-fifths is 50, What is the number ?
24. Two-third of a positive number and $$\frac{25}{216}$$ of its reciprocal are equal, The number is :
25. The difference between two integers is 5. Their product is 500. Find the numbers.
26. What is the sum of two consecutive even numbers, the difference of whose squares is 84 ?
27. A certain number of two digits is three times the sum of its digits and if 45 be added to it, the digits are reversed. The number is ?
28. If the product of two numbers is 5 and one of the number is $$\frac{3}{2}$$, then sum of two numbers is :
29. If a number is added to two-fifths of itself, the value so obtained is 455. What is the number ?
30. Find the whole number which when increased by 20 is equal to 69 times the reciprocal of the number.
Read More Section(Problems on Numbers)
Each Section contains maximum 100 MCQs question on Problems on Numbers. To get more questions visit other sections.