The salaries A, B, C are in the ratio 2 : 3 : 5. If the increments of 15%, 10% and 20% are allowed respectively in their…

If 4 years ago the ratio between the ages of P and Q was 5 : 6 and the sum of their ages at present is 52, what is the r…

The falling height of an object is proportional to the square of the time. One object falls 64 cm in 2 sec then in 6 sec…

Two numbers are such that the square of one is 224 less than 8 times the square of the other. If the numbers are in the …

The sum of the salaries of A and B is Rs. 2100. A spends 80% of his salary and B spends 70% of his salary. If their sav…

If Rs. 782 be divided into three parts, proportional to $$\frac{1}{2}$$ : $$\frac{2}{3}$$ : $$\frac{3}{4}$$ then the fir…

If a : b = 2 : 3 and b : c = 4 : 5, then (a + b) : (b + c) is equal to-

In a school the ratio of boys and girls is 4 : 5 respectively. When 100 girls leave the school the ratio becomes 6 : 7 r…