Amazing Maths's tricks and tips.


Smart Math

XYZ publication started with 2000 novels. The printing cost, packaging cost and delivery cost of each novel is Rs. 150, Rs. 20 and Rs. 50 respectively. If 40% of the novels are sold at 3/4th of the cost price, then how much percent above the cost price should the remaining novels be sold to get 20% profit on total expenditure?

4 months ago | [YT] | 1

Smart Math

A dishonest salesman buys x% more grains than what he pays for ,while selling he
uses counterfeit weight which measures 800 grams for every 1000 grams. If he sells
the item at 10% above the cost price and earn an overall profit of 65%, then find the
value of x.

5 months ago | [YT] | 0

Smart Math

In an exam minimum qualifying marks for class IX and X are 30% and 45% respectively. It is known that total marks of each class are same and a boy of class X scored 1225; thereby failing by 125 marks. Find passing marks for class IX.

5 months ago | [YT] | 0

Smart Math

As per a company policy only 25% of the female employees and 20% of the male
employees can hold the positions higher than level 2. If the ratio of female and male
employees in the company is 3 : 2, then find the percentage of employees which are
working below level 2.

5 months ago | [YT] | 0

Smart Math

On a Big Billion day sale ,Google flagship mobile phone was available at a discount of 20% on Flipkart. The customers who are purchasing for the first time on Flipkart will get additional cashback of 10 % on the billing amount. Suraj being 1st time user of Flipkart purchases the mobile phone for Rs. 36000, find the actual cost price of the mobile phone.

5 months ago | [YT] | 0

Smart Math

AB de Villiers smashes 86 runs against Australia in 16 balls. If he only scored in
boundaries(fours and sixes) only, then find the maximum percent of runs he scored by hitting fours.

5 months ago | [YT] | 0

Smart Math

Out of total students 100/3 % are in hostel A and remaining are in hostel B. If 20 students from hostel B are shifted to hostel A, then total students in hostel A becomes 50% of total students. If 20 students from hostel A are shifted to hostel B, then the total students in hostel A becomes what per cent of total students?

5 months ago | [YT] | 0

Smart Math

In a class 25% of the students passed in both English and Hindi. 37.5% of the students failed in both the subjects while 60% students failed in Hindi. The difference between the students who passed in English and those who passed in Hindi is 15. What is the total number of students in class?

5 months ago | [YT] | 0

Smart Math

Salary of A is 37.5% of the total salary of A and B. B saves 60% of his salary and total
savings of A and B is 50% of their total income. Their average expenditure is Rs. 16000. What is the total salary of A and B?

5 months ago | [YT] | 0

Smart Math

A man distributes 10%, 18% and 22% of his salary into his three children who spend 40%, 60% and 25% of that amount respectively. The difference between the total amount left with the children and man is Rs. 1015. What is the salary of the man?

5 months ago | [YT] | 0