+0  
 
+2
117
2
avatar

Hi, could you say me, if are answers for my homework right? I am from Slovakia (European country), I study on gymnasium (1st class). The teacher gave us voluntary homework (for good mark which is 1 here). These homework answers was on school-leaving exam this year. Teacher tried to select easy questions and they were easy for me, but I wanna know if is process of calculating (and my thingking laugh).. So here it is (I will try to translate it as best as I can)

 

1. Find the lowest 5 digit number (A432B) which is divisible (possible to divide) by 15 WITHOUT REMAINDER.

I think it's 14325 cause this number is the lowest and possible to divide by 15 - it's possible to divide by 3 and 5 together. Number is possible to divide by 3 when digit sum of number is possible to divide by 3 (1+4+3+2+5=15/3=5)

Number is possible to divide by 5 when it ends on 0 or 5 (14325; when I insert 0, digit sum will be not possible to divide by 3)

 

 

2. Sum of 17 numbers (all numbers ϵ N ---> N means 1 - infinty) is 154. Find the biggest two numbers and write sum of them.

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 +12 + 13 + 14 + 15 + 16 + 18 = 154

16 + 18 = 34

 

 

3. Juraj, Filip, Karol and Milan planned trip. All boys said their wishings:

J: I wanna go to High Tatras or stay in hotel.

F: I wanna go to High Tatras and stay in cottage.

K: If we will not go to High Tatras, then I wanna stay in hotel.

M: If we will go to High Tatras, then I wanna stay in cottage or I wanna have breakfast including.

All of them finally went to High Tatras, stayed in hotel and they had breakfast included. Select an option in which were all of them satisfied:

    a) J, K, M

    b) J, F

    c) K, F, M

    d) K, M

    e) J, F, K

I selected a) option (J, K, M).

 

 

 

 

THANKS IN ADVANCE:

Guest Mar 30, 2017
Sort: 

2+0 Answers

 #1
avatar+189 
-1

It is correct.

Snappingtunic99  Mar 30, 2017
 #2
avatar
0

Thank you very much. smiley

Guest Mar 30, 2017

5 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details