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Inter breeding of individuals of same breed which do not have common ancestors for 4 to 5 generations is out crossing.
If a student distributes sweets in the ratio of 1/2:1/3:1/4:1/5:1/6 among five of his friends A, B, C, D and E, then the total number (minimum) of swe...
Ratio of runs scored by A, B and C is 3:10:8, respectively. Total number of runs scored by the team is 480, which is four times the runs scored by B. Fi...
If the diagonal of a square is increased by 4 cm, its area increases by 56 cm2 . Find the ratio of the new area of the square to the initial ...
A sum of Rs. 2,100 is distributed among three persons P, Q, and R in the ratio 3:2:5. If the same sum had been distributed in the ratio 5:2:3, then how ...
A sum of Rs. 2400 was divided among three persons X, Y and Z such that if their shares were diminished by Rs, 5, Rs. 10 and Rs. 15 respectively, the rem...
A bag contains 10-paisa, 20-paisa and 50-paisa coins in the ratio of 8:9:10, respectively. If the total amount in the bag is Rs. 38, then find 80% of th...
A bag contains 10-paisa, 20-paisa and 50-paisa coins in the ratio of 9:7:5, respectively. If the total amount in the bag is Rs. 48, then find 40% of the...
The ratio of number of girls to number of boys is 3 : 2 in a class of 60 students. The average marks scored by the boys in Physics is 72 and the average...
Four roommates ('L', 'M', 'N', 'O') received a bill of Rs. 2,500 for their electricity usage. 'L' paid 1/5th of what the other three paid jointly. 'M' c...
