The ratio of two numbers a and b is 3:5. If 2 is added to both the numbers, the ratio becomes 2:3. Find b.
A. 15
B. 10
C. 8
D. 5
Ratio and Proportion · Easy · 3 weeks ago
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Ratio and Proportion
The plan for a rectangular area is drawn to a scale of 1:500. If the length and breadth in the plan is 30 cm and 20 cm, find the actual area.
A. 1200 m²
B. 1500 m²
C. 12000 m²
D. 15000 m²
Ratio and Proportion · Easy · 3 weeks ago
The length and breadth of a rectangle are in the ratio 5:4. Find its perimeter if its area is 180 cm²
A. 54 cm
B. 27 cm
C. 12 cm
D. 15 cm
Ratio and Proportion · Easy · 3 weeks ago
In what ratio should the profit of Rs.8000 be divided if X starts a business with an investment of Rs. 20000, Y invests Rs.7500 for 4 months and Z invests Rs.15000 after 3 months from the start of the business.
A. 16 : 2 : 3
B. 8 : 3 : 6
C. 16 : 2 : 9
D. 6 : 9 : 1
Ratio and Proportion · Easy · 3 weeks ago
M:N = 3:4, N:O = 5:7 and O:P = 7:9. Then M:P =________?
A. 1/3
B. 7/9
C. 5/12
D. None of these
Ratio and Proportion · Easy · 3 weeks ago
The perimeter of a triangle is 81 cm. If the sides are in the ratio 4:3:2, find the length of the largest side.
A. 45 cm
B. 40 cm
C. 36 cm
D. 27 cm
Ratio and Proportion · Easy · 3 weeks ago
The ratio of boys and girls in a class was 11:13. 8 girls and 4 boys join the class from this academic year and the ratio becomes 4:5. Find the strength of the class.
A. 96
B. 68
C. 72
D. 108
Ratio and Proportion · Easy · 3 weeks ago
A class has 90 students. If the ratio of boys and girls is 7:8, find the number of boys in the class.
A. 48
B. 42
C. 60
D. 70
Ratio and Proportion · Easy · 3 weeks ago
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