In a class the average age is 16yrs.if the teacher who is 40 yrs of age is also included ,the average becomes 17yrs,how many students were there?
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A person was fined for exceeding the speed limit by 10 km/hr. Another person was also fined for exceeding the same speed limit by twice the same. If the second person was traveling at a speed of 35km/hr,find the speed limit?
GENUINE opposite?
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if the height of the triangle decreases by 40% and the breadth increases by 40%.then the effect on the area is
Cloth:scissor, axe:?
1,4,13,31,112,?
Can there be a line which can cut all the four quadrants?
There is a work which can be completed by A with 12 days and B by 18 days. A and B works together for 3 days and B left. After that how many days for A to complete the work?
What is the 8th term in the series 1,4, 9, 25, 35, 63, . . . ?
Denominator is 4 greater than numerator if 10 is added to Denominator,the fraction becomes 1/8.what is the fraction.
Four Members A,B,C,D are playing a game .A person losing a game should double the amount of others .B,C,D are losing in order after three games .The amount after 3 games are A&B having 40,D is having 16&C 80. Each questions carry one mark: a) who started with small amount of money? b) who started with greatest amount of money? c) what amount did B have?
Two trains 100 meters and 120 meters long are running in the same directions with speed of 72 km/hr and 54 km./hr. in how much time will the first train cross the second?