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How many ways are there to arrange 7 chocolate biscuits and 12 cheesecake biscuits into a row of 19 biscuits?

Correct Answer: 50388
Consider the situation as having 19 spots and filling them with 7 chocolate biscuits and 19 cheesecake biscuits. Then we just choose 7 spots for the chocolate biscuits and let the other 10 spots have cheesecake biscuits. The number of ways to do this job is 19C7 = 50388.

In a row, there are 8 girls between Aruna and Bimla and Aruna being the first girl in row. There are 5 girls between Bimla and Chetna. If there are 14 girls after Chetna, then how many minimum girls are there in the row?

In a row, there are 12 professors between Akash and Bhumi and Akash being the first professor in the row. There are 6 professors between Bhumi and Charu. If there are 15 professors after Charu, then how many minimum professors are there in the row?

An automatic box was the property of the company. The box contained a slit of sufficient size to admit a coin and a projecting button. The box was so constructed that upon a coin being dropped into the slit and the button being pushed in, a chocolate would be ejected from the box. 'A' dropped into the slit a brass disc about the size and shape of the coin, and thereby obtained a chocolate. 'A' is

In a row, there are 6 boys between A and B and A being the first boy in row. There are 3 boys between B and C. If there are 12 boys after C, then howmany minimum boys are there in the row?

Nurse Kemp has worked more night shifts in a row than Nurse Rogers, who has worked five. Nurse Miller has worked fifteen night shifts in a row, more than Nurses Kemp and Rogers combined. Nurse Calvin has worked eight night shifts in a row, less than Nurse Kemp. How many night shifts in a row has Nurse Kemp worked?

A man sells chocolates which are in the boxes. Only either full box or half a box of chocolates can be purchased from him. A customer comes and buys half the number of boxes which the seller had plus half box more. A second customer comes and purchases half the remaining number of boxes plus half a box. After this the seller is left with no chocolate boxes. How many chocolate boxes the seller had initially?

You are to arrange 36 identical chairs in rows such that there is same number of chairs in each row. Each row must contain at least 4 chairs and there must be at least 3 rows. How many different arrangements are possible?

Out of 10 employees in an office 5 drink 2 cups of coffee per day, 3 drinks 3 cups of hot chocolate per day and 2 drink 5 cups of tea per day. If it is known that on an average to make a cup of coffee 100 ml of milk is used, to make a cup of hot chocolate 180 ml of milk is used and to make a cup of tea 60 ml milk is used, find the monthly expenditure on milk of the company, if milk is 46 rupees per liter.

A Rs 1000 box of cookies is offered at 10% discount and a Rs 400 bar of chocolate at 8% discount. If we buy 2 boxes of cookies and 3 bars of chocolate,what is the effective discount we get (in %)?

In a row of children facing north, Mita is third to the right the right of Amir. Ravi is fifth to the left of Mita and twentieth from the left end. Amir's position is seventeen from the right end of the row. How many children are there in the row?