Instructions

For the following questions answer them individually

Q 1

Raju has 3 kids, a wife and two parents. They have a habit of sitting around a circular table and taking a selfie everyday. Every day they sit in a new position for the selfie. They are saving all these pictures in an album that has a fixed cost of 1000 Rs and a variable cost of 3 Rs/ picture. How much will the cost be when they are done with all the possible photos for the album?

Q 2

Ravi is as old as Hari was at the time of Raviâ€™s birth. If Mohan is 15 years older than Hari and the ratio of Mohanâ€™s age to Raviâ€™s age is an integer, then how many values can this ratio take? (Assume everyoneâ€™s ages to be integral (in years))

Q 3

How many different pairs(a,b) of positive integers are there such that $$a\geq b$$ and $$\frac{1}{a}+\frac{1}{b}=\frac{1}{9}$$?

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Q 4

In a survey it was found that 20% of all people like McD, 70% like KFC and 40% like Subway. It is known that everyone likes at least 1 restaurant. What can be the maximum percentage of people who like all three restaurants?

Q 5

A chemical X is produced by mixing substances P and Q in the ratio 7 : 3. Substance P is produced by mixing substances R and S in the ratio 1 : 2. Substance Q is produced by mixing substances S and T in the ratio 4 : 5. If 1620 ml of chemical X is mixed with water such that the substance S in the resultant mixture is 40%, then what quantity of water was chemical X mixed with (in ml)?

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# | Name | Overall Score |
---|---|---|

1 | Rio Das | 15 |

2 | Anjun hm | 15 |

3 | Trishna Bhattacharya | 15 |

4 | Rajat Goyal | 15 |

5 | Naveen Chaurasia | 15 |

6 | Vishal Galav | 12 |

7 | shivam rastogi | 12 |

8 | Aravind A R | 12 |

9 | Paul Erdos | 12 |

10 | Aurobind Patro | 12 |