A. 15
B. 10
C. 8
D. 5
a:b = 3:5 5a = 3b (a+2):(b+2) = 2:3 3(a+2) = 2(b+2) 3a+6 = 2b+4 3*(3b/5) = 2b-2 9b = 10b-10 b =10
Advertisement
Related Mcqs:
- The ratio of two numbers is 5:9. If each number is decreased by 5, the ratio becomes 5:11. Find the numbers.
- A. 30, 19 B. 21, 37 C. 15, 34 D. 15, 27...
- The L.C.M of two numbers is 48. The numbers are in the ratio 2:3. The sum of numbers is__________?
- A. 28 B. 32 C. 40 D. 64...
- The H.C.F and L.C.M of two numbers are 84 and 21 respectively. If the ratio of the two numbers is 1:4, then the larger of the two numbers is____________?
- A. 12 B. 48 C. 84 D. 108...
- Two numbers are in the ratio 3 : 5. If 9 is subtracted from each, the new numbers are in the ratio 12 : 23. The smaller number is :________?
- A. 27 B. 33 C. 49 D. 55...
- The sum of three numbers is 172. The ratio of the first and second numbers is 8:11. The ratio of the second and third is 5:7. Find the second number.
- A. 44 B. 55 C. 66 D. 77...
- The sum of five numbers is 655. The average of the first two numbers is 85 and the third number is 125. Find the average of the two numbers?
- A. 180 B. 170 C. 190 D. 175...
- If the sum of two numbers is 55 and the H.C.F and L.C.M of these numbers are 5 and 120 respectively, then the sum of the reciprocal of the numbers is equal to___________?
- A. 55/601 B. 601/55 C. 11/120 D. 120/11...
- Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is :__________?
- A. 2 : 5 B. 3 : 5 C. 4 : 5 D. 6 : 7...
- The sum of cubes of two numbers is 280. If the numbers are in the ratio 2:3, find the smallest number.
- A. 4 B. 6 C. 3 D. 2...
- The sum of squares of three numbers is 280. If the numbers are in the ratio 3:5:6, find the greatest number.
- A. 8 B. 6 C. 12 D. 18...
Advertisement
