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Aug 19, 2013



Aug 17, 2013

A fruit-seller had some apples.He sells 40% of them and still has 420 apples.Find the number of apples he had originally.



60% of x= 420
60/100x = 420
60x       = 42000
x           = 42000/60
...

Jul 30, 2013

A Sells a bicycle to B at a profit of 20% and B sells it to C at a profit of 25%,If C pays 1500,What did A pay for it?



The CP is 125 for C, when CP for B is 100.
So, CP is 1500 for C, when CP for B = 100*1500/125  = Rs 1200

Similarly

Dec 29, 2014



Dec 16, 2013



May 23, 2014



Oct 24, 2014

How to construct 110 degree angle using ruler and compass only. please tell in simple words



The angle you have given is not divisible by 15. and 110 is not divisible So, it can't be constructed by ruler and compass.

Mar 10, 2015

The square lawn is surrounded by a path 2.5m wide. If the area of the path is 165 Sq., find the area of lawn.



Consider the side of the lawn be x

Given width of the path = 2.5m

Side of the lawn including path = x + 2(2.5m) = x + 5m

So, area...

Mar 11, 2014

A certain freezing process requires that room temperature be lowered from 40 degree c at the rate of 5 degree c every hour. what will be the room temperature 10 hours after the process begins?



Given that,.
room temperature is 40

Find 5 rational numbers between -1 and 0



Sol:
Given numbers -1 and 0.

Rational numbers between 2 numbers a and b is ( a + b) / 2.

Rational numbers between 2 numbers -1 and 0 is

= ( -1 + 0) / 2 = -...

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