The ratio of the number of boys to the number of girls in a class is 9 : 7
The ratio of the number of boys to the number of girls in a class is 9 : 7. If there are 96 students in the class, how many girls are there?
एक कक्षा में लड़कों की संख्या और लड़कियों की संख्या का अनुपात 9 : 7 है। अगर कक्षा में 96 छात्र हैं, तो कितनी लड़कियाँ हैं?
Detailed Solution & Logic
Correct Answer:
42
ratio = 9 : 7
= 9 + 7 = 16
total student = 96
$96\div 16$ = 6
लड़कियों girls =$ 7\times 6 = 42 $
Similar Practice Questions
A triangular prism has a base with area 45 cm^2 and height 14 cm. If 10% of the prism is hollowed out for wiring, what is the volume of the solid part?
A triangular prism has a base with area 45 $\text{cm}^2$ and height 14 cm. If...
The ratio of the length to the breadth of a school playground is 5 : 2. If the breadth is 40 meters, what is the length?
The ratio of the length to the breadth of a school playground is 5 :...
Sachin sold 152 chairs and had
Sachin sold 152 chairs and had a gain equal to the selling price of 52...
Evaluate/ मान ज्ञात कीजिए 174
Evaluate/ मान ज्ञात कीजिए $\sqrt{16}+\sqrt{900}+\sqrt{\frac{9.5\times 0.0085\times 18.9}{0.21\times 0.0017\times 1.9}}.$
“The average marks of 14 students in a class is 63. If the marks of each student are doubled, find the new average.”
“The average marks of 14 students in a class is 63. If the marks of...
Amir goes to his college from his house at a speed of 4km/hr and returns at a speed of 2 km/hr.
Amir goes to his college from his house at a speed of 4km/hr and returns...
A cuboid of dimensions 18 cm × 12 cm × 8 cm is melted and recast into smaller cubes each having an edge of 4 cm.
A cuboid of dimensions 18 cm × 12 cm × 8 cm is melted and...