1.Masood's age 18 years from now will be three times his age 4 years ago. What is Masood's current age?
2.If you add 2 to half of one-third of one-fifth of a certain number, the result equals one-fifteenth of that number. What is the number?
3.A three-digit number has a hundreds digit that is 2 greater than the tens digit, and the units digit is 2 less than the tens digit. If the sum of all three digits equals 18, what is the number?
4.A two-digit number becomes 45 less when its digits are reversed. If the sum of the digits in the reversed number is 13, what is the original number?
5.The sum of five consecutive even numbers from set X is 440. Determine the total of another group of five consecutive integers if the second smallest number in this group is 121 less than twice the smallest number in set X.
6.Consider six even numbers in a row. If the sum of the second and the sixth numbers equals 24, what is the value of the fourth number?
7.A two-digit number has digits whose sum is 12 and whose difference is 6. What is the number?
8.A two-digit number has a tens digit that exceeds its units digit by 2. If the number equals seven times the sum of its digits, what is the units digit?
9.Find the value of x that satisfies the equation: 6x - 27 + 3x = 4 + 9 - x.
10.Find the value of x that satisfies the equation: 19(x + y) + 17 = 19(-x + y) - 21.
11.The combined price of 2 chairs and 3 tables is Rs.1300, while the total cost of 3 chairs and 2 tables is Rs.1200. By how much does the price of one table exceed the price of one chair?
12.A fraction has a denominator that is one less than twice its numerator. When both the numerator and denominator are increased by 1, the fraction equals 3/5. What is the original fraction?
13.The price of 10 kilograms of apples is the same as the price of 24 kilograms of rice. Additionally, the cost of 6 kilograms of flour is equal to the cost of 2 kilograms of rice. If the price per kilogram of flour is Rs. 20.50, what is the combined cost of purchasing 4 kilograms of apples, 3 kilograms of rice, and 5 kilograms of flour?
14.A question paper contains five problems, each with three internal options. In how many different ways can a candidate attempt at least one problem by choosing one option per problem?
15.There are 20 male students and 25 female students in a class. How many different pairs consisting of one boy and one girl can be formed?
16.How many different ways can you choose three consonants and two vowels from the letters in the word "TRIANGLE"?
17.A container holds 9 yellow balls, 3 white balls, and 4 red balls. How many different ways can you select two balls from this collection?
18.Using the digits {1, 2, 3, 5, 7, 9}, how many distinct four-digit even numbers can be created?
19.Using the digits {1, 3, 4, 5, 7, 9} without repeating any digit, how many unique four-digit numbers can be created?
20.In how many different ways can six boys and six girls be arranged in a single row for a photograph such that no two girls are seated next to each other?