Income of A is twice the income of B. B and A spend 55% and 65% respectively of their incomes. Find the savings of A, if B saves Rs. 18000 in a month.
A boat can travel at a speed of 15 km/h in still water. If the speed of the current is 3 km/h, how long will it take to travel 24 km upstream?
In a rectangular floor of length and breadth of 12 metres and 9 metres, respectively, square tiles each of 3 metre edge length are to be laid. If the co...
If f(x) is periodic of period T, then:
- What does the term WORM stand for in computing?
- The average weight of 6 students in a group is 45 kg. If one student is replaced by person 'B', the average weight of the group increases by 5%. Find the d...
The distance between (4, –1) and (–8, y) is 13. Find possible values of y.
? = (597.98 ÷ (6.97 2.01 – 3.1)) × 12.9
If a hyperbola passes through the point (4, 0) and has foci at (±5, 0), and the length of its conjugate axis is 6, then the eccentricity is:
If f(g(x))= x, where f and g are inverses of each other and f’(x) = 1/(1+x ² ), then g’(x) equals:
