self Maths Puzzle

who has not as a child played this game which is now a subject of recreational mathematics?A-Tic-tac-toe ,B-chess ,C-Ludo ,D-Domino

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self Other Question

Truck A and Truck B move grain into a box at the rate of 20 kilos/min and 13 1/3 kilos a min respectively while truck C removes grain from the box at the rate of 10 kilos/min. If the capacity of the box is 2.4 tons, and Truck A, Truck B and Truck C are working simultaneously Then the box will be filled in?
a) 1 1/2 hrs
b) 3/5 hrs
c)1 5/7 hrs
d)2 1/8 hrs
Amit has a RS 1,5 10 and 20 note in his wallet.how much ways are there for him to pull out 2 notes and have enough to pay Rs 8 for lunch?