Two ships are sailing in the sea on the two sides of a lighthouse. The angles of elevation of the top of the lighthouse observed from the ships are 30° and 45° respectively. If the lighthouse is 100m high, find the distance between the two ships. 155.80 m 157.80 m 159. 80 m 161.80 m
The speed of a boat in still water is 5km/hr. If the speed of the boat against the stream is 3 km/hr, what is the speed of the stream? 1.5 km/hr 2 km/hr 2.5 km/hr 1 km/hr 2 km/hr
A mother is twice as old as her son. If 20 years ago, the age of the mother was 10 times the age of the son, what is the present age of the mother? 38 years 40 years 43 years 45 years 45 years
Sohan started a business with a capital of Rs. 80000. After 6 months Mohan joined as a partner by investing Rs. 65000. After one year they earned total profit Rs. 20000. What is share of Sohan in the profit? Rs. 5222.2 Rs. 5777.7 Rs. 6222.2 Rs. 6777.7 Rs. 5777.7