reasoning Maths Puzzle Numerical Ability Time and Work

‎-1,0,0,2,6,30............. find the next one in the series..

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reasoning Other Question

The shopkeeper may go out of business soon because of his idea of pricing. He charges Rs. 6 for a doll, Rs. 7.50 for a train, Rs. 4.50 for a top, and Rs. 15 for a helicopter .
By the same rules, what does he charge for a bicycle? You are in the dark, and on the floor there are six shoes of three colors, and a heap of twenty-four socks, black and brown. How many socks and shoes must you take into the light to be certain that you have a matching pair of socks and a matching pair of shoes?