Innovation coaching

a vessel is full of mixture of kerosine and petrol in which kerosene is 18%. 8 ltrs are drawn off the vessel and filled with petrol if the kerosene is now 15%how much does vessel hold.
give your ans in comment box

a man buys milk at Rs 8.5 a ltrs and dilutes with water and sells at same rate thus makes a profit of 11.11%.find the quantity of water mixed by him in every ltrs of milk.
comment your answer and time taken to solve this question

date 13.4 .14
1 how many unbroken tiles will be required to cover the bathroom floor if the area of floor is 500sq.m and each tiles measures 10 cm *50 cm

2 what is the average of three consecutive odd integers if one of them is -1

3 i j k are three consecutive integers what is the value of i j k if ik=-1

4 in a garden there are apple mango and orange trees which of the tree is most in number given that
there are 4/5 as many oranges trees as there are mango trees
there are 2/3 as many mango trees as there are apple trees

answer these questions at innovation coaching and get cash reward of 100 rs last date 16.4.14
one who answers first will get the prize.his name along with answers will be posted at this page

its a challenge series of mind blowing questions of class 10th level .

if you can solve this questions you will get cash reward of 100 rs every week

rules are very simple just solve questions at innovation coaching and get reward .

this challenge is open only for 10 standard students of ICSE board.

each Saturday few question will be posted on this page and you have to come with answers at innovation coaching on coming Friday at 6 pm.

CHALLENGE IS A MOTIVATION FOR THOSE WHO HAVE POSITIVE ATTITUDE AND ARE DARING BUT RISK TO BE AVOIDED FOR COWRAD

WORLD REVOLVES AROUND JUST TWO THINGS FIRST IS MATHEMATICS AND OTHER IS DIPLOMACY IF YOU WANT TO BE A LEADER MASTER IN BOTH

"our progress as a nation can be no swifter than our progress in education" J.F. KENNEDY