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Frequently Asked self Math Questions and Answer

(#M40032875) SELF QUESTION numbers problem Keep an EYE

Q. What is the missing number of the following sequence
9, 35, 91, 189, _, 559

arunkumar (6 years ago)

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(#M40008420) SELF QUESTION self Keep an EYE

If the simple interest on a sum of money for 2 years at 5% per annum is Rs. 50, what is the compound interest on the same at the same rate and for the same time?

A. Rs. 51.25 B. Rs. 52
C. Rs. 54.25 D. Rs. 60
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niru (8 years ago)

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(#M40002601) SELF QUESTION Keep an EYE

Alice and Bob play the following coins-on-a-stack game. 20 coins are stacked one above the other.One of them is a special (gold) coin and the rest are ordinary coins. The goal is to bring the gold coin tothe top by repeatedly moving the topmost coin to another position in the stack.Alice starts and the players take turns. A turn consists of moving the coin on the top to a position i belowthe top coin (0 = i = 20). We will call this an i-move (thus a 0-move implies doing nothing). The provisois that an i-move cannot be repeated; for example once a player makes a 2-move, on subsequent turnsneither player can make a 2-move. If the gold coin happens to be on top when it's a player's turn thenthe player wins the game. Initially, the gold coinis the third coin from the top. Then find the valid game between alice and bob.
a) In order to win, Alice's first move should be a 1-move.
b) In order to win, Alice's first move should be a 0-move.
c) In order to win, Alice's first move can be a 0-move or a 1-move.
d) Alice has no winning strategy.

Solution

(b)In order to win, Alice's first move should be a 1-move....
reason:there are two possibility after 1- move by Alice:-
1. when bob takes 0-move....then the coin config is same ..... but now alice can neither take 1-move nor 0-move.... so she has to take 2 or greater move(let it be 2 move)............
now we have only one coin above the gold coin......now bob can neither take 1-move nor 0-move nor 2-move.... so she has to take 3 or greater move.......
but the move greater then 2-move brings gold coin on top....makes alice win...

2.now bob takes 2-move after alice's first move....... now thre is only one coin above the gold coin..... so Alice takes 0-move........now we have only one coin above the gold coin......now bob can neither take 1-move nor 0-move nor 2-move.... so she has to take 3 or greater move.......
but the move greater then 2-move brings gold coin on top....makes alice win...

This answer is given by ROHIT KUMAR and is the correct answer

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aniruddha mandal (8 years ago)

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(#M40002229) SELF QUESTION Keep an EYE

there are three temples,u have to offer flowers in all the three temples,condition is that a pond is there in front of all the three temples in before entering to temple you have to wash the flowers in the pond,when you wsh the flowers they will become double,you can purchase the flower only once,and u have to offer equal numbers of flowers in wll the three temples and finally you should have no flower remaining with you, question is how many flowers will you purchase???

Praveen Singh (8 years ago)

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(#M40037622) SELF QUESTION logical thinking Keep an EYE

having 10 cigarette packets.9 packets having 10 gram cigarettes but in 1 packet 11 gram cigarettes are there.we are having digital weighing machine and need to weigh only one time.how to find which packet is having 11 gram cigaretts??

Shalini (6 years ago)

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(#M40009345) SELF QUESTION Keep an EYE

Complete the series
123 135 148 160 173 …

Flower (8 years ago)

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(#M40021479) SELF QUESTION Keep an EYE

what power of 15 divides 87! exactly?

vikash singh (6 years ago)

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(#M40008499) SELF QUESTION self Keep an EYE

In covering a distance of 30 km, Abhay takes 2 hours more than Sameer. If Abhay doubles his speed, then he would take 1 hour less than Sameer. Abhay's speed is:

A. 5 kmph B. 6 kmph
C. 6.25 kmph D. 7.5 kmph

niru (8 years ago)

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(#M40008330) SELF QUESTION Keep an EYE

AB+BA=CAC Then what is A,B,c?

gurumoorthy (8 years ago)

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(#M40009967) SELF QUESTION Keep an EYE

2,4,12,48,240,1440,?

Garima (7 years ago)

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