Let the maximum marks in each subject be 100. ∴ Total score = 60% of (100 + 100 + 100) = 60% of (300) = 180 Also, 75% marks in a subject correspond to 75% of (100) = 75 Let a boy have scored 3x, 4x and 8x in the three subjects. ∴ 3x + 4x + 8x = 180 ∴ 15x = 180 i.e. x = 12 Hence, his marks in the three subjects are 36, 48 and 96. Hence, he has scored more than 75 in exactly one subject.
Shruti's current age is 20% less than Suhana's age. Four years from now, the ratio of Suhana’s age to Shruti's age will be 11:9. What was the ratio of...
'P' and 'Q' have present ages in the ratio of 4:5. If Q’s current age is increased by 20%, the gap between their ages becomes 1...
The respective ratio of the present ages of A and B is 5:6. The present age of C is 20% more than that of B. The sum of the present ages of A, B and C i...
A is younger than B by 4 years. If the ratio of A and B ages is 5:7 respectively, then find the age of A.
In a classroom there are 11 boys and 9 girls. Average age of each boy and each girl is 18 years and 15 years respectively. The sum of ages of all the bo...
A is 3 years older than B while C is 5 years younger than B. The ratio of age of A, 6 years hence and age of B, 3 years ago is 4:3. What was age of C, 1...
A is 10 years older than B and B is 14 years younger than C. If the sum of the ages of A, B and C is 54 years, then what is B’s age after 9 years?
A person’s present age is 4/5th of the age of his brother. After 10 years, he will be 9/10th of the age of his brother. How old is the brother at ...
The ratio of age of A and his son is 9:3. If the difference of their ages 6 years ago is 36, then find the sum of the ages of A and his son together 4 y...
My sister is 5 years elder to me. My father was 30 years of age when my brother was born while my mother was 28 years of age when I was born. If my bro...
