Brain Teaser Test 

Number of questions:10

Q.1 Four friends are out shopping. A has less money than three times the amount that B has. C has more money than B. D has an amount equal to the difference of amounts with B and C. A has three times the money than D. They each have to buy a least one shirt, or one shawl, or one sweater, or one jacket, that are priced Rs.200, Rs. 400, Rs.600 and Rs.1000 apiece, respectively. C borrows Rs.300 from A and buys a jacket. B buys a sweater after borrowing Rs.100 from A and is left with no money. A buys three shirts. What is the costliest item that Dcould buy with his own money?



Q.2 In a family gathering there are two males who are grandfathers and four males who are fathers. In the same gathering there are two females who are grandmothers and four females who are mothers. There is at least one grandson or a granddaughter present in this gathering. There are two husband wife pairs in this group. These can either be a grandfather and a grandmother, or a father and a mother. The single grandfather (whose wife is not present) has two grandsons and a son present. The single grandmother (whose husband is not present) has two grand daughters and a daughter present. A grandfather or a grandmother present with their spouses does not have any grandson or granddaughter present. What is the minimum number of people present in this gathering?



Q.3 Read the following information and answer the questions that follow.
 
Two shopkeepers go to buy newly designed weights from the trade fair. In a particular shop the salesman asks their limits of weighing at a time. Both of them tell their limit as 120 kg at a time. The salesman shows them the price list as:
 
 Any weight less than 10 kg ?                  Rs. 10 per piece
 More than 11 kg but less than 50 kg ?    Rs. 20 per piece
 More than 51 kg but less than 100 kg ?  Rs. 30 per piece.
 More than 100 kg ?                              Rs. 50 per piece.
 
The salesman gave them two options:

In the 1st option, the shopkeepers might have to put the weights on both sides. He gave them an example:
Suppose you want to weigh 7 kg, so put 10 kg on weight side and put 3 kg on the goods side.
        
In the second option, the shopkeeper did not need to put the weights on goods side.

 

If the 1st shopkeeper opts for the 1st option, what is the minimum number of weights he would need to buy at the lowest cost?



Q.4

Two shopkeepers go to buy newly designed weights from the trade fair. In a particular shop the salesman asks their limits of weighing at a time. Both of them tell their limit as 120 kg at a time. The salesman shows them the price list as:
 
 Any weight less than 10 kg ?                  Rs. 10 per piece
 More than 11 kg but less than 50 kg ?    Rs. 20 per piece
 More than 51 kg but less than 100 kg ?  Rs. 30 per piece.
 More than 100 kg ?                              Rs. 50 per piece.
 
The salesman gave them two options:

In the 1st option, the shopkeepers might have to put the weights on both sides. He gave them an example:
Suppose you want to weigh 7 kg, so put 10 kg on weight side and put 3 kg on the goods side.
        
In the second option, the shopkeeper did not need to put the weights on goods side.

 

The 2nd shopkeeper opts for the 2nd option. What is the min. no. of weights he would need to buy at the lowest cost?



Q.5

Two shopkeepers go to buy newly designed weights from the trade fair. In a particular shop the salesman asks their limits of weighing at a time. Both of them tell their limit as 120 kg at a time. The salesman shows them the price list as:
 
 Any weight less than 10 kg ?                  Rs. 10 per piece
 More than 11 kg but less than 50 kg ?    Rs. 20 per piece
 More than 51 kg but less than 100 kg ?  Rs. 30 per piece.
 More than 100 kg ?                              Rs. 50 per piece.
 
The salesman gave them two options:

In the 1st option, the shopkeepers might have to put the weights on both sides. He gave them an example:
Suppose you want to weigh 7 kg, so put 10 kg on weight side and put 3 kg on the goods side.
        
In the second option, the shopkeeper did not need to put the weights on goods side.

 

One of them needed as much more amount as the other has left after purchase. Suppose both of them left their home with the same amount. Who borrowed and what amount was borrowed?



Q.6 An old woman died recently. Unaware to all, she was quite rich. As she had no children, she left most of her estate to her favourite charities; she willed Rs 50,00,000 to three couples who had shown her kindness in the later years of her life. Kareena received Rs 50,000 more than Krishna and Mandira received Rs 50,000 more than Kareena. The three women received a total of Rs 19,80,000. The rest was left to their husbands. Balwant was given as such much as his wife, Raju received 3/2 as much as his wife and Jaswant was granted twice as much as his wife.
The wife of Jaswant is:



Q.7 An old woman died recently. Unaware to all, she was quite rich. As she had no children, she left most of her estate to her favourite charities; she willed Rs 50,00,000 to three couples who had shown her kindness in the later years of her life. Kareena received Rs 50,000 more than Krishna and Mandira received Rs 50,000 more than Kareena. The three women received a total of Rs 19,80,000. The rest was left to their husbands. Balwant was given as such much as his wife, Raju received 3/2 as much as his wife and Jaswant was granted twice as much as his wife.
The husband of Krishna is:



Q.8 An old woman died recently. Unaware to all, she was quite rich. As she had no children, she left most of her estate to her favourite charities; she willed Rs 50,00,000 to three couples who had shown her kindness in the later years of her life. Kareena received Rs 50,000 more than Krishna and Mandira received Rs 50,000 more than Kareena. The three women received a total of Rs 19,80,000. The rest was left to their husbands. Balwant was given as such much as his wife, Raju received 3/2 as much as his wife and Jaswant was granted twice as much as his wife.
Which of the following is the correct pair?



Q.9 Three friends are playing with a set of red, yellow and green marbles. When it is time to go home, the first friend takes half the marbles, second one takes half of the remaining, third one half of the remaining. They are still left with a few and they decide to equally divide the left over amongst themselves. At the end of all this, the third friend has 20
The number of total balls is



Q.10 Three friends are playing with a set of red, yellow and green marbles. When it is time to go home, the first friend takes half the marbles, second one takes half of the remaining, third one half of the remaining. They are still left with a few and they decide to equally divide the left over amongst themselves. At the end of all this, the third friend has 20
The difference between the marbles that the first friend has and the second friend has is




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