When the integer n is divided by 4, the quotient is q and the remainder is 1. But when it is divided by 7, the quotient is q and the remainder is 5. The value of 3q-2p is:
In a sample of 50 people, 19 had type O blood, 22 had type A blood, 7 had type B blood and 2 had type AB blood. If a person is selected randomly, find the probability that the person has neither type A nor type O blood?
The area of two spheres are in the ratio 1:4. The ratio of their volume is-
Kajol riding his bike at 24 km/h reaches his office 5 minutes late. If he would have reached the office 4 minutes earlier than the scheduled time by traveling 25% faster, how far is his office from his house in km?