Maths previous question part 1
1. A train 220 m long is running at 30 km/hr ,how long will it take to cross a bridge 80 meters long a. 10 seconds b). 14/3 seconds c). 36 seconds d).16.8seconds Distance to cover=220+80=300 time=distance/speed= time=DistanceSpeed =300/30*5/18=300/30*18/5=36 second 2. A and B together can finish a work in 16 days,while Bcan do the same work alone in 24 days. In how many days can A alone finish the work? a. 25 days b). 20 days c). 48 days d). 42 days 1/16-1/24=24-16/16*24=8/16*24=1/48 48 days 3. The ratio of ages of Anil and Asha is 3:5. The sum of their ages is 48 years.What is the age of Asha a. 18 years b).30 years c). 16 years d).10 years 48*⅝=6*5=30 4. Today is monday.After 100 days What day it will be? a. ...