Limit/range based questions in permutation How many numbers greater than 999 but less than equal to 4000 is formed using the digits 0, 1,2, 3, 4 when (a) Repetition of digits allowed (b) Repetition of digits not allowed

How many numbers greater than equal to  200 but less than equal to  4000 is formed using the digits 0, 1,2, 3, 4 when
(a) Repetition of digits allowed
(b) Repetition of digits not allowed

Video solution

How many numbers greater than   999 but less than equal to  4000 is formed using the digits 0, 1,2, 3, 4 when
(a) Repetition of digits allowed
(b) Repetition of digits not allowed

A shopkeeper gives one kite free on sale of 19 kites if he double the discount, How many kites he will give on sale of 27 kites?

1 A shopkeeper gives one kite free on sale of 19 kites if he double the discount, How many kites he will give on sale of 27 kites?
Ans 3 kites

Video solution

question
A shopkeeper sells a badminton  racket , whose marked price is Rs. 30, at a discount of 15% and gives a shuttle cock costing Rs. 1.50 free  with each racket . Even hem he making a profit of 20% . His cost per racket is

1. On dividing 2272 as well as 875 by 3-digit number N, we get the same remainder. Find the sum of the digits of N?

1. On dividing 2272 as well as 875 by 3-digit number N, we get the same remainder. Find the sum of the digits of N?
Ans 10
2. On dividing 11284 as well as 7655 by 3-digit number N, we get the same remainder. Find the sum of the digits of N?
Ans 11


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Dishonest dealer/Dishonest shopkeeper/False weights/Cheating in weights Profit and loss questions

1.A dishonest dealer marks up the price of his goods by 20% and gives a discount of 10% to the customer. Besides, he also cheats both his supplier and his buyer by 100 grams while buying or selling 1 kilogram. Find the percentage profit earned by the shopkeeper?
Ans 32 percent

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some more questions for extra practice



2.
A dishonest dealer marks up the price of his goods by 60% and gives a discount of 25% to the customer. Besides, he also cheats both his supplier and his buyer by 100 grams while buying or selling 1 kilogram. Find the percentage profit earned by the shopkeeper?
Ans 46.66 percent


3

A dishonest shopkeeper professes to sell pulses at the cost price, but he uses a false weight of $950$ gm for a kg. his gain is ...%?
Ans 5.26 percent

4

A dishonest shopkeeper uses false balance and cheats a customer by giving 20% less quantity of food . His profit is 

Ans 25%

5

A shopkeeper professes to sell his goods at cost price but uses a weight of 800 gm instead of kilogram weight.Thus, he makes a profit of

Ans 25%