In an examination, 5 questions were asked. 5 % of total students answered all the questions and 5 % did not answered any of the questions. 25 % and 20 % of the remaining students answered only one question and 4 questions respectively . 24 % of the total students answered 2 questions. If 200 students answered 3 questions, then find the total number of students appeared in the examination.

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Election voting questions in Percentage

 In an election only two candidates contested. 30 % of the registered voters did not cast their votes and 180 votes were declared invalid. The winner got 684 votes more than his opponent. The number of valid votes received by the winner is 42% of the number of registered voters. How many registered voters cast their votes? for video solution click this video

this same question can be asked in the below manner

question
In an election only two candidates contested 20% of the voters did not vote and 120 votes were declared as invalid. The winner got 200 votes more than his opponent  thus he secured 41% votes of the total voters on the voter list. Percentage votes of the defeated candidate out of the total votes casted is
ans 45 %

A and B participated in 1km race. If A gives B a start of 100m, A still wins by 20 seconds and if A gives B a start of 25 seconds, B wins by 50 meters. Find the time taken by A to run 1 Km.

Question 1
Amit and Bharat participated in 1000 m race. If Amit gives Bharat a start of 50m, Amit wins by 14 seconds and if Amit gives Bharat a start of 22 seconds, Bharat wins by 20 meters. Find the time taken by Amit to run 1000 m.

Ans 100 seconds

Question 2
A and B participated in 1km race. If A gives B a start of 100m, A  still wins by 20 seconds and if A gives B a start of 25 seconds, B wins by 50 meters. Find the time taken by A to run 1 Km.

Ans 500/29 seconds

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24 men can complete a work in 16 days. 32 women can complete the same work in 24 days. 16 men and 16 women worked for 12 days. How many more men are required to complete the remaining work in 2 days?

24 men can complete a work in 16 days. 32 women can complete the same work in 24 days. 16 men and 16 women worked for 12 days. How many more men are required to complete the remaining work in 2 days?

Video solution

How to find cube of a two digit number shortcut trick

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Geometry value putting trick

In an isosceles triangle ABC a circle passes through vertex B and touches mid-point of line AC at Q and intersects the side AB at P. Find AP: PB?

or it can be asked in this manner

ABC is an isosceles triangle in which AB = AC. A circle through B touches the side AC at D and intersect the side AB at P. If D is the midpoint of side AC, Then  Prove  AB = 4 AP.

1
A says to B when I was of your age i was three times of your age at that time  and sum of their present ages is 64 .find present Age of A?
Ans A = 40 ,B=24


 NOW Small variation in question


2
A says to B "I am twice as old as you were when I was as old as you are". The sum of their ages is 63 years. Find the difference of their ages ?
 ans 
A =36 ,B=27
difference =9