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Start learning 50% faster. Sign in nowThis technique involves drying a soil sample in an oven and calculating the percentage of moisture by weight.
Present ages of P and Q are in the ratio 3:7 respectively. If Q’s age, 10 years hence from now will be 5 times of P’s age, 6 years ago from now, the...
The ratio of the ages of A, B and C, 5 years ago, was 4 : 5 : 7. The sum of their present ages is 135 years. What will be the sum of the ages (in years...
The ratio of A's age to B's age after 18 years will be 5:6. Seven years ago, the ratio of their ages was 5:7. Find the present average age of A and B.
"Amit and Bishnu's current ages are in the ratio 4:5. Chintu's age is 40% more than Amit's age. If Bishnu and Chintu's ages sum up to 106 years, what is...
Three years ago, the ratio between the ages of 'A' and 'B' was 4:5, and eight years from now, the ratio will be 6:7. If 'C' is 12 years older than 'A', ...
Present ages of 'A' and 'B' are in the ratio 3:5, respectively. If B's age, 8 years hence from now will be 3 times of A's age, 12 years ago from now, th...
The average ages of A, B and C is 20% more than the average ages of A and B. 10years hence from now, the ratio of the ages of A and C will be 3:5, respe...
There are four people P, Q, R and S. R and P are the oldest and youngest among them. Q is older than S. The present age of R is double the present age o...
The present age of A is 7/4 times to that of his marriage age. Present age of his brother is 1/4th of his present age. If A was married 36 years ago the...
A 15-member group has two individuals aged 18 and 23. When excluded, the average age of the rest increases by 3 years. Find the average age of all members.
