Vitorr classes

Two numbers A and B are such that the sum of 5% of A and 4% of B is 2/3rd of the sum of 6% of A and 8% of B. The ratio A: B is Watch video to see the solution :                                          

1. The sum of all natural numbers between 100 and 200, which are multiples of 3 is : (1) 5000 (2) 4950 (3) 4980 (4) 4900 Ans. 2 2. The sum of the squres of three consecutive natural numbers is 2030. Then, what is the middle number? (1) 25 (2) 26 (3) 27 (4) 28 Ans. 2 3. The sum of three consecutive odd natural numbers is 87. The smallest of these natural numbers is : (1) 29 (2) 31 (3) 23 (4) 27 Ans. 4 4. Sum of three consecutive even integers is 54. find the least among them. (1) 18 (2) 15 (3) 14 (4) 16 Ans. 4 5. The sum of three consecutive numbers is 87. The middle number is (1) 27 (2) 29 (3) 30 (4) 28 Ans. 2 6. What is the sum of two consecutive even numbers, the difference of whose sqare is 84? (1) 38 (2) 34 (3) 42 (4) 46 Ans. 3 7. The sum of all the natural numbers from 51 to 100 is (1) 5050 (2) 4275 (3) 4025 (4) 3775 Ans. 4 8. The sum of all the 2-digit numbers is : (1) 4995 (2) 4950 (3) 4945 (4) 4905 Ans. 4 9. The sum of first 50 o...

The milk and water in two vessels A and B are in the ratio 4:3 and 2:3 respectively. In what ratio, the liquids in both the vessels be mixed to obtain a new mixture in vessel C containing half milk and half water?