# Tagged Questions

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### A completes 36% work in 12 days.

A completes 36% work in 12 days. B is twice as fast as A. C is twice as fast as B. How many approx days are required for finishing the remaining 64% work if all of them work together.? a)2 b)4 ...
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### Clock puzzle.. Bit tricky

Twin Sisters A and B bought 2 wristwatches at 12 p.m . An Hour later , A's watch reads 1:02 p.m while B's watch reads 12:56 p.m. Later , on same day : If A's watch reads 10 p.m then at that time ...
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### Help understanding train problem

A train $150$ $m$ long passes a km stone in $15$ seconds and another train of the same length traveling in opposite direction in $8$ seconds. The speed of the ...
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### If A divided by B is equal to C and C is larger than D …

If A divided by B is equal to C and C is larger than D, and all these number are positive whole numbers other than one, it follows that A is always larger than D B is always smaller than C B is ...
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### Time & Work Problem

12 men do a work in 36 days.In how many days can 18 men do the same work? Sol:This can be solved as 1 man's can do work in 12*36 days So,1 man's 1 day work (1/12*36) days Hence 18 men's 1 day work is ...
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### Percentages - Find Maximum value.

3 candidates A,B and C contest an election. A gets at least 40% of all the votes. B gets at least 20% of the number of votes that A gets and cannot get more than 80% of number of votes that c gets. ...
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### Finding remainders of large number

This question was asked in a competitive exam. Find the remainder of dividing $6^{83}+ 8^{83}$ by $49$ Are there any theorems/rules to compute the answer ?
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### Divisibility of large number

This was a question asked in a competitive exam: $(300^{3000} -1 )$ is divisible by a) $401$ b) $501$ c) $301$ d) $901$ The answer is $301$. Not sure how they arrived at the answer. Can ...
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### Finding change in total surface area of a cone

If the height of a cone is decreased by 20% whereas its radius is increased by 25% , can we find the percentage increase in total surface of the cone ? With the above information , I am trying to ...
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### HCF/LCM problem

Find the greatest number that will divide $x$, $y$ and $z$ leaving the same remainder in each case. Now the solution for this is obtained by finding the HCF of $(x – y)$, $(y – z)$ and $(z – x)$. ...
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### Finding last digit of numbers raised to large powers

This question came in a competitive exam I took recently. The last digit of LCM of $3^{2003} - 1$ and $3^{2003} + 1$ is is there any strategy by which we can quickly determine the answer? I am ...
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### Find the minimum number of tests

Sorry for the title, but I couldn't think of something else, its not actually homework, but rather a question from a maths question book I am currently stuck on, but still I've tagged it in homework. ...
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### Smallest number in a set

A is the set of seven consequtive two digit numbers, none of these being multiple of 10. Reversing the numbers in set A forms numbers in set B. The difference between the sum of elements in set A ...
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The problem statement: Distance between two stations A and B is 230 km. Two motorcyclist starts simultaneously from A and B in opposite directions and the distance between them after 4 hours ...
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### If $(1.001)^{1259} = 3.52$ and $(1.001)^{2062} = 7.85$, then $(1.001)^{3321}= ?$

If $(1.001)^{1259} = 3.52$ and $(1.001)^{2062} = 7.85$, then $(1.001)^{3321}= ?$ what should be the approach in-order to get a solution without electronic aid?
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