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Restriction endonucleases (REs) are bacterial enzymes that cleave double-stranded DNA.
The current ages of 'Ajay' and 'Bishnu' are in the ratio 4:5. After 'y' years from now, their ages will be in the ratio y:(y + 1)...
The birth year of three siblings are consecutive. The present age of the eldest sibling is 10% more than the present age of the youngest sibling. What i...
Present ages of 'A' and 'B' are in the ratio 3:5, respectively. If B's age, 10 years hence from now will be 5 times of A's age, 14 years ago from now, t...
Four years from now, the age of 'A' will be 60% of the age of 'B' at that time. The combined present ages of 'A' and 'B' exceed the current age of 'C' b...
Laxman and his grandmother's current average age is 38 years. Four years from now, Laxman's age will be one-third of his grandmother's current age. Dete...
In a school there are 20 girls. The average age of the girls is decreased by 2 months when one girl aged 18 years is 8 replaced by a new girl. What is t...
Present ages of 'Amit' and 'Bishnu' are in the ratio 4:5, respectively. If seven years hence from now, the ratio of ages of 'Amit...
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...
When 15 years ago age of Dev was divided by 20, the present age of his granddaughter Swati is obtained. If Swati is 6 years younger than her sister Neha...