Question
Out of 450 students in a school, 48% are boys. Among the
boys and girls, 25% and 30% respectively like drawing. What is the total number of students who do not like drawing?Solution
ATQ,
Total number of boys = 450 Γ 0.48 = 216
Total number of girls = 450 - 216 = 234
So, number of boys who do not like drawing = 216 Γ 0.75 = 162
So, number of girls who do not like drawing = 234 Γ 0.7 = 163.8 β 164
So, required number of students = 162 + 164 = 326
If β+β means β-β, βΓβ means βΓ·β βΓ·β means β+β and β-β means βΓβ, then which of the following will be the value of th...
- Three positive numbers are in the ratio 2:3:4. If the sum of their squares is 2349, what is the average of the two largest numbers?
The ratio of present boys to girls is 3:2. 10 girls are absent, which is 20% of the class. No boys are absent. Find the number of boys.
A boy initially has 350 candies. He shares 'c%' of his candies with his friends. Later, his mother gives him 'c' additional candies. Calculate the total...
In a class, the present students are in the ratio of boys to girls as 4:1. If 10 girls are absent and they form 10% of the total class strength, and no ...
Determine the highest power of 2 present in the given expression:
Determine the smallest 4-digit number that, when divided by 15, 24, and 30, leaves a remainder of 5 each time.
Two numbers add up to 18, and the sum of their reciprocals is 5/2. Calculate the square of the product of the two numbers.
Find the third proportion of 22 and 11.
If the numerator of a fraction is increased by 20%, and denominator is decreased by 25%, then the fraction becomes 14/9. Find the original fraction.