1. The sum of the squares of two positive numbers is 100 and dfference of their squres is 28. Find the sum of the numbers : (1) 12 (2) 13 (3) 14 (4) 15 Ans. 3 2. The product of two numbers is 120. The sum of their squares is 289. The difference of these two numbers is (1) 9 (2) 7 (3) 8 (4) 6 Ans. 2 3. 380 mangoes are distributed among some boys and girls who are 85 in number. Each boy gets four mangoes and each girl gets five. The number of boys is (1) 15 (2) 38 (3) 40 (4) 15 Ans. 4 4. The product of two positive numbers is 2500. if one number is four time the other. then the sum of the two numbers is : (1) 25 (2) 125 (3) 225 (4) 250 Ans. 2 5. In a two digit number if it is known that its unit digit exceeds its tens digit by 2 and that the product of the given number and the sum of its digits is equal to 144, then the number is (1) 46 (2) 42 (3) 26 (4) 24 Ans. 4 6. In a test, 1 mark is awarded for each correct answer and one mark is deducted for each wron...
Preparation for Competitive exams SSC RAILWAY